TAMPA, Fla. (AP) - Republican Marco Rubio admits even he had doubts last year that he now would be in position to win the Senate race.
      
He told a group of Republican supporters Sunday morning that when most people said he had no chance to win the Republican primary, it occasionally made him wonder if they were right.
      
Rubio is now the front-runner to win Tuesday's election over Democratic Rep. Kendrick Meek and independent Gov. Charlie Crist, who abandoned the Republican primary after Rubio built a large lead in polls.
      
Rubio, a former House speaker, said, "Everything that we ever knew about politics told us a day like this could not come, we could never be at this point."

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