MICKEY KAUS: Undecideds In The Floorboards?

I’ve never understood why pundits can confidently assert that Obama and/or Romney have a “floor” of 45%, 46%, or 47%. How do they know? Isn’t it possible that lots of people who tell pollsters they’re “for” Obama (or Romney) harbor grave doubts and might not do what they say (or might change their minds)? With Obama, I’m not talking so much about a racial “Bradley Effect” as a similar effect produced when voters are reluctant to admit openly that they’ve given up on whatever hopes they had when they elected Obama in 2008.

Hmm.