Charlie Crist & Marco Rubio

The latest from Rasmussen Reports: Conservative Republicans in Florida may be rumbling about Charlie Crist’s run for the U.S. Senate, but so far the governor is well ahead of his chief 2010 GOP Primary challenger.

The latest Rasmussen Reports telephone survey in the Sunshine State shows Crist leading former Florida House Speaker Marco Rubio by 22 points among likely Republican Primary voters – 53% to 31%. Five percent (5%) prefer some other candidate, and 11% are undecided.

Still, the fact that Crist is barely above 50% in a primary against a much lesser known opponent suggests at least a potential vulnerability.