Not exactly what a Senator up for reelection in a state that favored the other party's presidential nominee wants to see.

Florida Gov. Charlie Crist remains overwhelmingly popular with a 68 - 18 percent job approval rating that makes him a strong favorite for re-election in 2010, but Sen. Mel Martinez's 42 - 33 percent approval rating makes him much more vulnerable, according to a Quinnipiac University poll released today.

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Although Sen. Martinez gets a somewhat favorable job approval rating, only 36 percent of voters say he deserves another term, while 38 percent say no and 26 percent say they are not sure. If the election were today, 36 percent say they would vote for Martinez while 40 percent would support his unnamed Democratic opponent and 24 percent are undecided.

Senators with approval ratings south of the 50 percent mark are never in a great position to earn another term -- particularly when they have a negative reelect number. Combined with the polling from over the summer showing either Congressman Robert Wexler (whom I like as a candidate in this race) or state CEO CFO Alex Sink giving Martinez a tough time, and polling from the fall showing Congressmen Alan Boyd and Ron Klein both doing the same, it's fairly clear that Martinez will be a top target for the Democrats this coming cycle.