PPP robo poll: Rubio now leads Crist 60-28, including a staggering 71-17 lead with conservatives. Crist has a 49-36 advantage with party moderates, but they account for just 31% of likely primary voters compared to 65% who describe themselves as conservative.

Rubio is benefiting from a widely held sentiment among Florida GOP voters that Congressional Republicans are too liberal and that Crist would add to the problem. 41% of them think that the party leadership in Washington is too liberal, and with those folks Rubio holds an 83-10 lead. 50% think that Crist himself is too liberal and with those voters Rubio's advantage expands even wider to 90-5.

It also looks like it's too late for Crist to audible and make another run for Governor. GOP voters say they'd prefer likely nominee Bill McCollum over Crist by a 49-35 margin. In fact Republicans generally just want Crist to go away- 56% say they'd like him out of office a year from now to 19% who'd like to see him continue as Governor and only 14% who want him in the Senate....

Our general election Senate numbers, which we'll release tomorrow, find that Crist is a good deal more popular with Democrats now than he is with Republicans. His path to any future electoral victory may come as an independent or perhaps even as a Democrat.

UPDATE: Spin from Crist campaign is that PP is an agenda-driven Dem firm aiming to help the weaker general election candidate, Rubio. And that questions intentionally cast doubt on Crist's party loyalty.

"Polls like this reflect the mood of the electorate, and the electorate is in a bad mood. Ultimately, elections are about choices: this election will come down to the choice between an honest public servant with a strong conservative record in Charlie Crist and a Miami lobbyist-politician Marco Rubio, who has traded on his connections for everything from $135 haircuts to fat lobbying deals.  Charlie Crist will win this race and win it decisively." -Andrea Saul, Communications Director, Charlie Crist for U.S. Senate