Content in Presidential Campaign Speeches

Last week I posted details of the level of “persona deception” among the Republican presidential candidates and President Obama. Persona deception measures how much a candidate is trying to present himself as “better” in some way than he really is. This is the essence of campaigning — we don’t elect politicians based on the quality of their proposals; and we don’t fail to elect them because they tell us factual lies. Almost everything is based on our assessment of character which we get from appearance and behavior, and also from language.

Today I’ll post a description of the different content of the speeches so far in 2012. This is less informative than levels of deception, but it does give some insight into what candidates are thinking is of interest or importance to the voters they are currently targeting. Here is an overview of the topic space:

You can see that most of the Republican candidates are talking about very similar things. In fact, the speeches in the upper right-hand corner are associated strongly with words such as “greatness”, “freedom”, “opportunity”, “principles” and “prosperity” — all very abstract nouns without much content that could come back to haunt them.

Gingrich’s speeches towards the bottom of the figure are quite different, although still associated with quite abstract words: “bureaucracy”, “media”, “pipeline”, “elite”, “establishment”. These are almost all things that he is against — stay tuned for an analysis of negative word use later in the week.

Obama’s speeches, on the left-hand side, are heavily oriented to manufacturing associated with words such as: “cars”, “hi-tech”, “plant”, “oil”, “demand”, “prices”.

What a candidate chooses to talk about seems to be a mix of his personal hobbyhorses (at the time) and some judgement of what issues are of interest to the general public, or at least which can create daylight between one candidate’s position and the others. From this perspective, Gingrich separates himself from the other Republicans quite well. Somewhat surprisingly, Ron Paul’s content is not very different from that of Romney and Santorum. Probably this can be accounted for as a function of the three of them all trying to appeal to a very similar segment of the base. Whether Gingrich is consciously trying to address different issues, or whether his history or personality compel him to is not clear.

2012 US Election, Republicans plus President Obama

Yesterday I posted details about the levels of persona deception in the speeches by the Republican candidates since the beginning of 2012. In striking contrast to the 2008 cycle, the speeches fall along a single axis, indicating widespread commonalities in the way that they use words, particularly the words of the deception model.

Today I’ve included President Obama’s speeches this year in the mix. I’ve tried to select only those speeches where there was an audience. Of course, for a sitting president, the distinction between an ordinary speech and a campaign speech is difficult to draw. Almost all of these are labelled as campaign events at whitehouse.gov.

Here is the plots of the persona deception levels, with Obama’s speeches added in magenta.

Generally speaking, Obama’s levels of persona deception (see yesterday’s post to be clear on what this means) are in the low range compared to the Republican presidential candidates. This is quite different from what happened in the 2008 cycle, where his levels were almost always well above those of McCain and Clinton. It’s not altogether surprising, though. First, he can no longer be the mirror in which voters see what they want to see since he has a substantial and visible track record. Second, he doesn’t have to try as hard to project a persona (at least at this stage of the campaign) since he has no competitor. I expect that his values will climb as the campaign progresses, particularly after the Republican nominee becomes an actual person and not a potential one.

The interesting point is the outlier at the top left of the figure. This is Obama’s speech to AIPAC. Clearly this is not really a campaign speech, so the language might be expected to be different. On the other hand, if it were projected onto the single-factor line formed by the other speeches, it would be much more towards the deceptive end of that axis. Since the underlying model detects all kinds of deception, not just that associated with persona deception in campaigns, this may be revealing of the attitude of the administration to the content expressed in this speech.

Republican presidential candidates — first analysis of persona deception

Regular readers of this blog will know that I carried out extensive analysis of the speeches of the contenders in the 2008 US presidential election cycle (see earlier postings). I’m now beginning similar analysis for the 2012 cycle, concentrating on the Republican contenders for now.

You will recall that Pennebaker’s deception model enables a set of documents to be ranked in order of their deceptiveness, detected via changes in the frequency of occurrence of 86 words in four categories: first-person singular pronouns, exclusive words, negative-emotion words, and action verbs. Words in the first two categories decrease in the presence of deception, while those in the last two categories increase. The model only allows for ranking, rather than true/false determination, because “increase” and “decrease” are always relative to some norm for the set of documents being considered.

How does this apply to politics? First of all, the point isn’t to detect when a politician is lying (Cynical joke: Q: How do you tell when a politician is lying? A: His lips are moving). Politicians tell factual lies, but this seems to have no impact on how voters perceive them, perhaps because we’re come to expect it. Rather, the kind of deception that is interesting is the kind where a politician is trying to present him/herself as a much better person (smarter, wiser, more competent) than they really are. This is what politicians do all the time.

Why should we care? There are two reasons. The first is that it works — typically the politician who is able to deliver the highest level of what we call “persona deception” gets elected. Voters have to decide on the basis of something, and this kind of presentation as a great individual seems to play more of a role than, say, actual plans for action.

Second, though, watching the changes in the levels of persona deception gives us a window into how each candidate (and campaign) is perceiving themselves (and, it turns out, their rivals) from day to day. Constructing and maintaining an artificial persona is difficult and expensive. Levels of persona deception tend to drop sharply when a candidate becomes confident that they’re doing well; and when some issue surfaces about which they don’t really have a persona opinion because, apparently, it takes time to construct the new piece.

So, with that preliminary, on to some results.

The figure shows the speeches in a space where speeches with greater person deception (spin) are further to the right, and those with less persona deception are further to the left. Ron Paul shows the lowest level of persona deception which is not surprising — nobody has ever accused him of trying to be what he is not. In contrast, Romney shows the highest level of persona deception — again not surprising as he has had to try hardest to make himself appealing to voters. Note that this also predicts that he will do well. Both Gingrich and Santorum occupy the middle ground; both are running on a very overt track record and are not trying as hard to make themselves seem different from who they are. Indeed, candidates with a strong history tend to have lower levels of persona deception simply because it’s very difficult to construct a new, more attractive persona when you already have a strong one. (The two points vertically separated from the rest are the result of a sudden burst of using “I’d” in these two speeches.)

The following figures break out the temporal patterns for the four candidates:

What’s striking about Romney is how much the level of persona deception changes from speech to speech. In the last election cycle, this wasn’t associated with audience type or recent success but seemed to be much more internally driven. This zig-zag pattern is much more the norm than a constant level of persona deception — some mystery remains.

Language in Presidential Elections — 2012 Season Opener

Readers of this blog will know that we spent a lot of time analyzing the speeches of the U.S. presidential candidates in the 2008 election. Our primary interest was in the use of the deception model, a linguistic/textual model of how freeform language changes when the speaker/writer is being deceptive.

In the political arena, factual deception, saying things that just ain’t so, plays very little role, perhaps because voters have very low expectations of politicians in this area. What we call persona deception, presenting oneself as a better,wiser,  more powerful, more able, more knowledgeable person than one really is is the heart of successful campaigning. It turns out that the deception model captures deception across the whole range from factual to persona deception, so it gives us a lens to look at candidates and campaigns. What’s more, because language generation is almost entirely subconscious, this lens is hard to fool.

The most important skill candidates and their campaigns have is the ability to reach out to potential voters to convince them that they are better than the other possibilities. The language that they use is an important channel, especially in settings where everyone is conservatively dressed, and standing behind a podium that conceals most of their body language, as the Republican presidential field was in Iowa yesterday.

Strong candidates understand, at least instinctively, that they are not making arguments to convince voters, but presenting themselves as more compelling human beings. Our analysis of the speeches of candidates in the 2008 U.S. presidential election showed that candidates use three different kinds of speeches: blue skies speeches that promise generically good things and could be delivered interchangeably by any candidate – they are aimed at a wide audience; track record speeches that use past achievements to imply special qualifications for future achievements – they are aimed at swing voters; and manifesto speeches that describe a candidate’s personal qualities directly – they are aimed at a candidate’s base and reinforce common identity. But in all three cases, it’s not the content of the speech that matters, but what it implies about the speaker.

Our analysis in the last election cycle showed that Obama was by far the best as presenting himself as a wonderful person, and many voters, and certainly many in the media, projected onto the persona  positive qualities that were perhaps not there. Interestingly, yesterday was the first time I have seen open Democratic buyers remorse about electing Obama, something I predicted would happen from the analysis we did.

The Republican candidates’ debate in Ames showed what a shaky grasp many of the candidates have on how to be a convincing candidate. Of course, this venue was a difficult one. Its overt purpose was for candidates to explain themselves to the local Republican base ahead of the Ames Straw Poll,which would have required largely manifesto content; but national television coverage made it an unmissable opportunity to reach out to a wider, but much more diverse audience, suggesting track record content. Blue skies content is always dangerous in the early stages of a campaign because grand but potentially unwise statements can come back to haunt a candidate.

Manifesto content was indeed popular – for example, we learned how many children almost every candidate has – typical content aimed at the base (“I’m a parent just like you”). Several candidates also tried for track record content, but got it quite wrong. The purpose of a track record speech is not for candidates to read their resumes to the audience; it’s to make the argument “I was able to do A, so you can trust me to be able to do similar-but-larger B” and this second part was notably absent.

Voters also want candidates to be sincere — recall the famous quotation “The secret of success is sincerity. Once you can fake that you’ve got it made” (Jean Girardoux). This is not just a cute quotation; this is what good politicians are able to do. In Iowa, this was another area where almost everyone stumbled. It was clear that most of the candidates had not only prepared talking point responses to probable questions, but has also rehearsed actual answers. Delivering from a prepared and memorized script and seeming sincere is a difficult business, and actors who can do it reliably command high rewards.  Most of the candidates failed at seeming sincere. Several managed the worst of both worlds by trying to combine their prepared scripts with some ad libbing and came across as quite incoherent. One of the reasons for Gingrich’s strong showing is that he stayed away from scripts and delivered his answers as if he had just thought of them. Huntsman and Romney, in contrast, were especially wooden.

When humans listen to humans, the content matters. But when character is the issue, other aspects of language matter more. Much language generation is subconscious, and therefore beyond a candidate’s control. This is good for voters because it means we can sometimes see through to the real person no matter how sophisticated their speech writers and spin doctors.

Language Patterns in the UK Election

There’s a nice article in New Scientist about the work of Pennebaker’s group, looking at the language patterns in the leaders’ debate last week in the UK election campaign. Details here.

Deception scores for the UEA emails

I’ve also calculated the deception scores for the UEA “climategate” emails, using the same methodology that I’ve written about in the context of the speeches of presidential candidates.

This doesn’t (yet) give any great results. This is partly because deception scores can only be computed for sets of similar documents. The UEA emails, however, fall into two broad classes: simple emails, and discussions and suggestions about more formal documents (papers and grant proposals). The language in these two classes is quite different, which makes them difficult to compare. For example, the base rates of first-person singular pronouns are very different.

What I have done is to see whether there are any patterns in  deception scores with time. A strong change in either class of email should be detectable as a variation of score with time, which might be visible. The result is shown below, with the deception score axis running from right (low) to left (high), and the markers getting lighter with the passage of time.

Deception scores of UEA emails

The only thing that strikes me so far is that many emails with low deception scores are older in time. This might be taken to indicate some kind of change in the language patterns of these email users.

The released emails are a small and not very random set of all of the emails sent by these individuals. So not too much should be read into this plot.

Reagan vs Obama and McCain

I thought it would be interesting to look at the level of spin in Reagan’s speeches. He shares some characteristics with Obama; not in political opinions but in his ability to motivate an audience, and to be resistant to potentially embarrassing factual issues.
Here is the plot from yesterday’s post comparing Obama and McCain since their conventions, with five campaign speeches (all I could find) by Reagan between the convention and the 1980 election.

Comparing the spin of Reagan, Obama, and McCain

The points with red stars are Reagan’s speeches. As you can see, his level of spin is much higher than either of today’s candidates. The ability to use high levels of spin without coming across as phony is, of course, what makes an actor, so this is not entirely surprising. And I’ve argued all along that high levels of spin pay off for a politician, and the ability to give high-spin speeches especially to people who do not already like you is a key asset for a politician. Reagan is a good example of this in action.

Spin scores to the end of October

Here is the analysis of levels of spin in Obama and McCain’s speeches up to a few days ago. Usual labelling (refer to previous posts for background).

Spin scores (red - McCain, blue - Obama)

The most obvious thing to see in this plot is how McCain’s speeches all tend to lie on one side of the deceptiveness axis while Obama’s tend to lie on the other side. This is because McCain has started using motion words at high rates (and Obama does not). This has a small effect on deceptiveness score, but rates of use of motion verbs are not all that important to signalling deception.

The individual levels of spin from the convention to the end of October are here:

McCain

Obama

The last time I posted was during the period where Obama’s level of spin was quite low. As you can see, it has risen sharply again in the past week. This suggests that he is not as confident of winning now as he was then — he has consistently shown a pattern of stepping out from his facade and using lower spin when he feels confident about winning.

Concluding thoughts on spin the U.S. presidential election

When people think about spin and politicians, they usually assume that spin has to do with either presenting widely agreed facts in a way that puts a particular politician in the best light, or altering the facts by exaggerating or misremembering. Media people are always slightly puzzled when they reveal this kind of spin and find that it has little or no resonance with voters. Hillary Clinton’s memory of landing under sniper fire was a one-day wonder, not a deal-breaker. And there have been many other examples of this kind of spin on both sides during the U.S. presidential campaign, and they have had little impact.

This is because voters don’t choose politicians because of how clever their ideas are , whether they agree with these ideas, or even whether they are noticeably competent (history shows). They don’t listen to the candidates’ speeches and parse them for content. They vote for candidates with whom they feel some kind of resonance. And so they look for features of the candidates as people with which they can identify.

A simple way to say this is that voters look for character rather than policy. But this is still a bit misleading — they don’t don’t think about character in moral terms, but in relationship terms. Not “Is this candidate a good person” but “is this candidate a bit like me”. Moral issues do come into play, but only for those voters to whom moral issues are part of their own self image.

The kind of spin I’ve been following through the U.S. election campaign addresses this issue of presentation, that is to what extent do candidates present themselves, as people, in ways that are not congruent with who they really are, as people. In other words, to what extent do they present a persona or facade that is designed to appeal to a wider range of voters than the unadorned person would?

For both John McCain and Hillary Clinton, the short version is that they have, in general, presented something close to the real person. (This may, of course, be because they developed a political persona that they’ve been using so long that it has become the real them.) There have been ups and downs, and it’s been possible to see what might be going through the mind of the candidate and/or the campaign at certain critical moments, but overall they have presented a consistent persona that seems close to their real personality.

Barack Obama, on the other hand, has consistently presented a persona that does not seem to be very close to the real Obama, about whom we can only guess. This is starting to be more widely appreciated. I’ve heard several commentators say how they find him inscrutable because they simply can’t see the real person behind the presentation.

Spin is only one factor in how voters decide who to vote for, so I can’t make a prediction about who will win tomorrow. What I think is predictable is that, if Obama wins, his approval ratings will drop quite quickly when he becomes president — he simply cannot be all of the things that people are projecting on to him, many of them mutually contradictory. And, as president, his actions will speak louder and more clearly than his campaign speeches about who he really is.

Update — Spin in US Presidential Election

I’ve looked at the spin in the speeches in the last few weeks, more or less since the convention. The overall picture has remained very similar to earlier stages: Obama’s levels of spin are relatively high compared to McCain’s.

Here is the overall spin plot:

Spin between the conventions and the last week of October

Here are the plots over time for McCain:

McCain's spin

and Obama:

The most interesting thing here is how much Obama’s level of spin has dropped in the last few speeches. This is very similar to what happened in the weeks (late February) when it became clear that he would get the Democratic nomination. When he feels sure of himself, he steps out from behind his election facade and presents himself much more openly. The extremely low-spin speech is his comedy routine at the Al Smith dinner — presumably the expectation that he should be funny rather than serious made him feel as if he had permission to be himself.

McCain’s high-spin speeches are those when he gives economic history lessons, unlike his typical speech in which he puts more of himself.

Spin — the technical basis

The work on spin that I’ve written about here is based primarily on the work of Pennebaker’s group at the University of Texas, Austin. The primary reference is here. The model is based on empirical studies of deception in settings where the ground truth is known, and has, by now, been validated many times. When someone is being deceptive, there will be characteristic changes in the ways they use certain words. Deception here means, of course, saying things that the speaker does not believe to be (entirely) true, not things that are factually incorrect.

Of course, this is domain dependent, so we can’t judge how deceptive politicians are in comparison to, say, used-car salesmen or nuns.

The use of the word “spin” rather than deception acknowledges the fact that there are differences between explicit intent to deceive and implicit, unconscious desire to present oneself as better (along some set of dimensions) than one actually is. This kind of self-improvement happens in job interviews, dating, and in politics.

And we don’t condemn someone for being deceptive when they make an initial offer in a negotiation, but the same kind of signals will appear in their language use.

The interesting thing is not so much that politicians try to appeal to as many people as possible, at the expense of strict accuracy, but that there are differences in how much this happens — changing over short time scales for a single person, and at longer time scales for a campaign; and that there are systematic differences between campaigns. There is a great deal of evidence that the properties mediated by changes in language patterns are not under conscious control (see e.g. Pennebaker and Chung) so they provide an insight into campaigns that is hard for the campaigns to obscure.

Election spin results covered by New Scientist

There’s an article on, among other things, my work on spin the US election campaign in this week’s issue of New Scientist. You can find it online here. There are also some interesting results from the people who look at facial expressions (pioneered by Ekman) and so voice analysis.

Canadian Federal Election — first analysis

I’ve done some analysis of the party leader speeches from the first week of campaigning. I am somewhat hampered by lack of data; only one speech by Jack Layton has been posted, and there are only three by Dion.

About the only conclusion so far is that language patterns are all over the place. There is no consistency in any of the campaigns. This might be because speechwriters are still settling in (but surely Harper’s at least must have known the election was coming?). Or it may be that all of the campaigns are unsure of their strategies in some less-conscious way. But it’s interesting, and slightly puzzling.

I’ll await more data.

Comparing the Democratic and Republican convention spin

Just to round out the picture, here’s data comparing the levels of spin across the speeches from both conventions.

Spin levels in both conventions

As usual, high spin is indicated by the red end of the line. Here are the spin scores for all of the speeches analyzed (positive numbers are high spin):

1. Bush 0.40
2. Thompson 1.71
3. Lieberman -0.73
4. Romney 4.36
5. Huckabee -1.8
6. Giuliani 2.97
7. Palin -0.62
8. McCain -7.38
9. M. Obama -1.24
10. Hillary Clinton 2.43
11. Bill Clinton 0.99
12. Biden -1.35
13. Obama 0.31

The relative positions don’t change much when compared to the other party. Within each party, there’s the same division into high- and low-spin speakers. McCain’s overall spin is still so low that it makes all of the other politicians look as if they are clustered quite close together, but there are actually quite large differences between them.

Note the cluster of Bush, Palin, Bill Clinton, and Biden who have very similar speech patterns. Perhaps this is the sign of a successful politician?

RNC convention spin summary

McCain’s speech last night had extremely low spin, mostly because of the very high rate of first-person singular pronoun use, almost twice the rate of Bush and Huckabee. It’s so large that it almost washes out the differences in the rates of use of other word classes.

Here’s the plot:

RNC speech spin

The speeches are in chronological order: 1 – Bush, 2-Thompson, 3-Lieberman, 4-Romney, 5-Huckabee, 6-Giuliani, 7-Palin, 8-McCain.

Note the alternating pattern of high and low spin, which is also characteristic of speeches on the campaign trail. We suspect that this is the result of (probably subconscious) awareness of spin that feeds into the scheduling.

The actual spin scores (positive means high spin are)

Bush -0.92
Thompson 4.02
Lieberman -0.95
Romney 2.43
Huckabee -1.88
Giuliani 3.72
Palin 1.17
McCain -7.58 (!!)

Spin in the RNC convention speeches

I’ll do a complete analysis after McCain’s speech tonight, but so far:

High spin: Thompson, Romney, Giuliani — all about the same level of spin but for different reasons.

Low spin: Bush, Lieberman, Huckabee — all about the same

Palin’s level of spin is almost exactly in between these two groups.

Of course, adding McCain’s speech to the mix may change the absolute positions of these speeches, as Obama’s did to the Clintons’ speeches at the DNC (see last week’s posts).

I’ll do the combined analysis too, to get a sense of how different the two parties are in their lanaguage use — stay tuned.

Update on spin in presidential elections

I was away for three weeks, and it’s taken me three weeks to catch up and be able to post again (although sporadically for a while).

I’ve worked through the candidate speeches since the beginning of the year. There’s  a lot to look at: what was the effect of Clinto dropping out of the race, and the transition to general-election mode?

Here’s the short version: Obama continues to use high levels of spin, after a brief period (between the time he had the primary won and the Pastor Wright affair) when his levels of spin were reduced. McCain has increased his level of spin so that it’s little different from that of Obama — his straight talk levels dropped off a cliff once Obama became the presumptive nominee.

Here’s the overall plot of spin:

Spin levels to July 16th

The red dots are McCain speeches; the blue dots, Clinton speeches; and the blue stars, Obama speeches. The speeches for each candidate are numbered in time order: 1-32 Clinton, 33-77 McCain, 78-128 Obama. Note that Clinton now looks like the straight-talking candidate, because the calculation of spin is done relative to all of the speeches over the past 7 months.

Here are the spin scores for each candidate individually, in time order:

Clinton Jan 2008 to her withdrawal

McCain Jan 2008 to July 16

Obama Jan 2008 to July 16th

The change in McCain’s levels of straight talking are by far the most noticeable. Obama has had a few flashes of straight talk, but he seems most comfortable using moderate levels of spin.

Of course, spin works and that is why both candidates are using it. But neither can really claim that their campaign is not politics as usual.

Travelling

I’m off on a round the Pacific trip, and won’t be able to post again until the last week of June.

If you happen to be in Sydney, I’ll be speaking:

• On Wednesday June 4th at the University of Sydney about how to find anomalous regions in graph/relational data;
• On Wednesday June 11th at the University of Technology on our work detecting deception in text;

I’m then heading to the Intelligence and Security Informatics conference in Taipei where I’ll be:

• On a panel at the Pacific Asia Workshop on Intelligence and Security about the relationship between privacy and intelligence informatics;
• Speaking about our work on deception detection in testimony;
• Presenting results showing that many mainstream prediction and clustering technologies are relatively easily manipulated by an adversary who can get access (even very limited access) to the data.

What can be learned from text II

Today let me talk about the internal state channel and what can be learned from it.

First, let me point out that this channel is even more driven by subconscious processes, so we have very little control over it, even if we know how it works. This makes it very revealing.

Some of the properties that can be inferred from the internal state channel are:

• personality. This is useful in many adversarial situations because you can’t usually get an adversary to sit down and take an MMPI test. Several ways to categorize personality from word usage have been developed, although they are obviously somewhat limited.
• status of each participant in a conversation. In general, lower status participants tend to use first-person singular pronouns at higher rates, which gives clues about how each participant regards him/herself with respect to the others involved.
• health. The health of an individual going forward for several months can be predicted by flexibility in pronoun use. This is a bit different from the other categories because it doesn’t rely on a particular signature of word frequencies, but on the ability of each individual to vary his/her word usage widely over time. In other words, unhealthy people maintain a single perspective on the world, and so use consistent pronouns to describe themselves and those around them; healthier people have a changing perspective that is reflected in changing pronouns. (Note the connections to first position, second position etc. associated with NLP and its antecedent psychological approaches.)
• stress/depression. This is related to the previous category, but both stress and depression show up in characteristic ways in word usage. In the case of depression, the changes continue even after the depression ends, so that the never-depressed differ from the once-depressed.
• community involvement or embeddedness. The way in which first-person singular and plural pronouns are used gives clues about how an individual feels in relation to a community.
• deception. I’ve written extensively about this in previous posts.

Much of these results are the work of James Pennebaker and his group at the University of Texas at Austin. His work (here) is quite accessible. The paper by Chung and Pennebaker is particularly relevant.

Spin in the US Presidential Primaries — Summary

As we enter what looks like it might be the end phase of the primary season, I thought I would summarize what I’ve written about spin during the process.

1. What is spin? People often talk about spin as messing with the content of a communication: leaving bits out, or changing the emphasis. What I’m talking about here is a mental (unconscious) process where a person presents themselves or their content in a way that does not reflect what they know to be true about it. Politicians (and the rest of us) do this, to some extent, all of the time — trying to make a good impression. For a politician, outright lying is a poor idea (recall Clinton under sniper fire) but there is a lot of pressure to be “all things to all men”. Because the communication is not the speaker’s natural persona, this kind of spin produces a detectable signature in the communication.
2. What is the model of spin (deception)? This work is based on Pennebaker’s empirically-derived model of word-usage changes when people are being deceptive. This model is characterized by (a) reduced rates of first-person singular pronouns; (b) reduced rates of exclusive words, words that mark the beginning of a phrase or clause that qualifies or refines what has gone before; (c) increased rates of negative-emotion words; and (d) increased rates of action verbs. These changes are unconsciously produced, so cannot be directly altered by a speaker, even one who knows the model. Although the model was developed for plain deception (outright lying) it seems to detect deception across the full range from lying, through spin, to negotiating and dating.
3. Why does there have to be a context? Because the model relies on increases and decreases in word-usage rates, there must be some kind of context of similar communications or documents to be able to tell whether a given frequency represents an increase or a decrease. Therefore, absolute spin scores cannot be determined — instead we can only rank a set of communications from most to least spinful. Even within the context of the presidential primaries, underlying language use has changed, most obviously from a ”getting to know me” phase to a “getting to know my policies” phase.
4. The early primaries. From the beginning of 2008 until the 3rd week of February, all three candidates were introducing themselves. In the speeches given during this period, McCain has the least spin, followed by Clinton, followed by Obama, with noticeably higher levels of spin. McCain generally used (and uses) high rates of first-person singular pronouns, justifying his ‘straight talk” claim; Clinton generally used high rates of exclusive words, adding refinement and qualification to many of her statements. Obama’s speeches were lacking in both: he used “we” at extremely high rates (and “I” hardly at all), and his statements were simple and declarative. This makes for speeches that are light on content but, when well delivered, emotionally uplifting. (Reading Obama’s speeches rather than hearing makes one wonder what all the fuss is about — the speeches themselves are rather dry, and the delivery is everything.)
5. Obama decides he’s won. Over the weekend of February 24th, Obama’s language patterns changed dramatically, becoming very similar to Clinton’s. I conclude that this weekend his campaign did the calculations and decided that Clinton could not win the nomination (which seemed, and seems, mathematically true). He cannot have consciously altered his speech patterns, so this must the result of reframing what’s going on to himself — presumably stepping out from behind the persona he had been using before that and presenting something closer to his real self.
6. The past month. In the past month, both Obama and Clinton show higher levels of spin whenever the pressure on them has increased, and they have become defensive. For example, Obama’s levels of spin jumped back to January levels when the Wright controversy became public. In such situations, Obama’s level of spin is characteristically higher than Clinton’s.
7. Responses versus statements. It is difficult to analyze and compare the debate statements of the candidates with their speeches. The question and answer form naturally changes the rates of word usage: for example, if the question is “Would you…” it’s much more likely that the answer will begin “I will…”. And, to make matters worse, debates are not really question and answer since candidates have prepared statements for likely questions and they will use them regardless of the form (and sometimes the content) of the question. It is not yet clear how applicable the deception model is in question and answer situations, so I have not analyzed the debates, except for the most-recent — where Obama still shows up having higher spin than Clinton.
8. Does spin work? Spin is a two-edged sword. On the one hand, it does work in the sense that it can make a speaker appealing to people who would otherwise not be attracted to him/her — which is why,  of course, politicians use it. On the other hand, if a candidate steps out of character, even briefly, people may realize that it is a facade and react in a strong negative way. And, to make it harder, the facade and the language usage are largely subconscious, so a candidate may misstep without realizing it.
9. “I” versus “we”. There’s a lot of (positive) discussion of Obama’s high rates of use of “we”. This pronoun is irrelevant to deception — people who are being honest or deceptive may use “we” at either high or low rates. However, the difference between using these two pronouns is partially understood. People who are being open and not status conscious typically use “I” a lot, while those who are being closed and status conscious typically use “we” a lot. In particular, “we’ is often code for “you” — commanding without creating the impression of command. In other words, “we” is a weasel word.
10. Growing into a persona. It’s possible that Clinton and McCain have been in politics so long that a persona that they originally assumed has now become so much a part of them that it has become their real personality; and that is why their levels of spin are low. By this explanation, the reason that Obama has such high levels of spin is that he’s a relative newcomer to the US national arena, and so he still “puts on” a persona. This doesn’t seem all that convincing — first, he has a long history in public life, although on a smaller stage; second, he seems to be able to step out from behind the persona when things are going well.

The analysis on which this summary is based (and the figures that go with it) can be found in earlier postings.