This is, of course, a talking point that's been going around among right-wing astroturfers for quite a while. Disturbing but not totally unexpected from Romney himself.

What it represents --beyond just a gaffe by Mitt --is the attempt to move the Republican Party from being defined as an "anti-tax" Party and shifting it to being an "anti-tax on the wealthy" Party.

That is, they need a way to get the working poor to believe that increasing taxes on the poor is a good idea.

Sounds politically suicidal, but at this point nothing's beyond the Rove machine's capacity. if they can make W look Presidential they can make people believe anything.