Desperate Charlie Crist Attacks Marco Rubio, Sarah Palin and Tea Parties in New TV Ad

Trailing in most polls by double digits, Gov. Charlie Crist, who is running for the U.S. Senate with no party affiliation, launched a last-minute attack against Republican front-runner Marco Rubio. In his new ad, Crist, who left the Republican Party after blowing a huge lead in the polls to Rubio before the Republican primary, insists he is the only candidate in the race who can win who will stand up to extremism -- a term he uses to describe Sarah Palin, Rubio and the tea party movement.