Yesterday, Marco Rubio said during a conference call with conservative bloggers that the Florida Senate race has seen some tightening. And sure enough,  Quinnipiac releases a poll showing Rubio up seven points on Charlie Crist, with Meek fading to 15%. Barring a Meek endorsement of Crist, it's hard to see Meek doing much worse than 15%. Bottom line: Rubio is still on track to win--he leads Crist by 10.8% in the RCP average of polls.