It proves that liberals lied about the Tea Party being racist.
I think Romney will win the Florida primary, but it was a great night for Cain and he deserved it.
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First of all, "liberals" meaning all liberals, have expressed no official opinion about Teabaggers being racists. Some teabaggers carried clearly racist signs at some rallies, but most did not. It is safe to say that some of them are racists.
Second, you cannot "lie" about your opinion. An opinion may or may not turn out to agree with reality.
If I say that I don't think John Travolta likes anchovies, and it turns out that he does, I am only lying if I already know that he likes them. If I have no proof, I cannot lie about Travolta's dislike or affinity for anchovies.
A lie is when you deliberately state that something you know is true is not, or vice versa. An opinion is simply a judgement about something. It is speculation. A speculation is not a lie. A lie is a deliberate falsehood.
Third, you assume that no racist would vote for Cain. Even if you accept this as fact, a majority of the Florida Straw Poll voters did NOT vote for Cain. As many as 63% might be, but that is unlikely.
Fourth, there is no proof that all, or some, or any, of the Florida Straw Poll voters are teabaggers. It would be reasonable to say that some are, and some are not.
So no, it does not prove anything other than more Florida Straw Poll voters, some of whom may be teabaggers, voted for Cain than any other single candidate.
I cannot say that Cain deserved or did not deserve to win. Deserve involves a value judgement, and I really don't think Cain has a ghost of a chance for a variety of reasons.
I agree that Romney seems likely to win the FL primary, but not by over 50%.