Kendrick Meek (D): 17 (17)
Marco Rubio (R): 40 (29)
Charlie Crist (I): 32 (35)
Alex Snitker (L): 3 (4)
Undecided: 8 (15)
Jeff Greene (D): 13 (13)
Marco Rubio (R): 37 (29)
Charlie Crist (I): 36 (38)
Alex Snitker (L): 4 (3)
Undecided: 10 (16)
(MoE: ±4.1%)
PPP's newest look at the Florida Senate race is a complete turnaround from one month ago. Charlie Crist and Marco Rubio aren't that differently situated, in terms of their popularity: Crist's approval is 42/44, while Rubio is at 40/37. However, a few things have changed that have caused their positions to dramatically flip since a month ago, though: the Republicans are even more tightly united around Rubio, taking moderate GOPers away from Crist. Also, the share of unaffiliateds (theoretically Crist's strongest constituency, since he's one of them now) has dropped since July, from 20% to only 14% of the sample.
It's a sample that went for John McCain over Barack Obama 48-45 in 2008 (instead of the actual Obama 51-48), and the Republican part of the sample may be even more extra-conservative than usual (remember that PPP was the only pollster yesterday to give Rick Scott, who seems to be the "conservative" candidate in the Gov primary, a lead). While I agree with PPP (and pretty much everyone else) that Crist's chances improve significantly with Jeff Greene as the Dem nominee rather than Kendrick Meek, it's interesting to note that Meek hasn't really increased his share in the general... the flip between Rubio and Crist seems based partly on composition differences between the two samples, and, even more notably, on undecideds moving to Rubio.