JPod over at Contentions:

If the Florida results remain as close as the exit polls make it appear, nothing is going to be resolved tonight on the Republican side with the frontrunners. If John McCain wins it by a point or two, he gets all the delegates and the headlines that he is the winner of Florida — which helps going into Super Tuesday. But Mitt Romney has no reason to back off, even though he will have lost four of the five real contests so far. He’s worked successfully now to establish himself as the McCain alternative, and there appears to be enough anger and suspicion of McCain among Republicans to make a Romney win plausible if McCain does something to injure himself.
And if Romney wins by a point or two, McCain just keeps going the same way he has. We’re going into a 21-state vote a week from now, and Romney’s money isn’t going to help him much because even he doesn’t have enough to flood the airwaves everywhere on his own behalf.

There’s more.