Most endorsements strike me as pretty worthless. But Charlie Crist’s strong endorsement of President Obama could be pretty valuable. The timing of it is valuable, too, coming on the eve of the Republican convention. There are a lot of Crist Republicans in Florida who probably feel like the Republican Party has grown too extreme if people like Charlie Crist are no longer welcome. And I think they were be particularly amenable to the message Crist is sending.
It doesn’t take much to flip Florida from a Republican to a Democratic state, or vice-versa. If the Crist Republicans vote for Obama, Obama will probably win the state.