A new Mason Dixon poll conducted for the SayfieReview shows that Gov. Charlie Crist (R) would be a formidable candidate if he were to seek Florida's open U.S. Senate seat in 2010.

Half of Florida voters said they would consider voting for the first-term incumbent, should he seek the seat, with another 17 percent saying he would definitely have their vote. But 26 percent said they definitely would not vote for Crist, while 7 percent were undecided. Notably, 12 percent of Democrats said they would definitely vote for Crist, though the poll did not provide any matchups with potential candidates.

If Crist decides to run to replace Mel Martinez in the U.S. Senate, the poll finds Florida voters evenly split on who they'd like to see replace Crist as governor. The poll tested Republican Attorney General Bill McCollum and Democrat Chief Financial Officer Alex Sink as candidates.

General Election Matchup
McCollum 36
Sink 35
Undecided 29

McCollum had slightly stronger support among fellow Republicans than Sink showed among Democrats, though she does have a modest lead among independent voters, 40-34 percent.

Crist has not yet indicated whether he'll seek re-election or run for Senate. Rep. Connie Mack (R), thought to have been a likely Senate candidate before speculation grew about Crist, took himself out of the race just yesterday. Rep. Kendrick Meek (D) is among the Democrats already running for Senate; he announced raising $1.5 million in the first quarter.

The poll tested 625 Florida registered voters between March 30 and April 1, and had a margin of error of plus or minus 4 percent.