On the stump in Florida today, Sarah Palin continued her role as attack dog against Obama, reports the Tribune's Mark Silva:

Palin also accused Obama of campaigning with "a left-wing agenda packaged to look mainstream.'' And, Palin accused Obama of lying - or, as she put it today, a lack of "truthfulness.''

"One of Barack Obama's supporters is Bill Ayers, an unreprentant domestic terrorist,'' Palin said at a campaign rally this morning in Florida, home to 27 electoral votes, where the polls portray an election contest far more competitive than Republicans thought it would be.

"Now, our opponent's campaign is claiming for the first time that Barack Obama wasn't aware of Ayers' radical background,'' said Palin - though Obama has denounced Ayers for his militant Weather Underground activities in the 1960s.

Obama campaign strategist David Axelrod said this week that Obama "didn't know the history" of Ayers' radical past when he first went to his home in '95, but Obama has since denounced the protest bombings of Ayers' "Weathermen'' as "detestable.'' Obama also was eight at the time of those Sixties protests.

"You mean he didn't know that he had launched his own political career in the living room of a domestic terrorist?'' Palin asked her crowd today.