The unexpected surprise. . .

. . .of Gov. Charlie Crist's endorsement of McCain is certainly a welcome one. While it won't necessarily be reflected in opinion polls, it carries considerable weight in terms of organization and GOTV efforts. Coupled with Mel Martinez's endorsement a few days ago, you have to think that the McCain campaign is fairly optimistic about its chances on Tuesday.

The fact that Jim Greer, the state GOP chair in Florida has voiced support for Crist's endorsement is helpful, too. Every little bit of organizational help is crucial in a race as tight as this one.