Sen. Marco Rubio, R-Fla., expressed concern Wednesday over talk in the Senate about moving to expel Roy Moore from the upper chamber if he is elected in next month's special election in Alabama.

Moore faces several accusations of sexual misconduct with women who said they were teenagers while he was in his 30s at the time of the incidents. He denies the charges, but has seen his prospects in the race take a hit in favor of Democrat Doug Jones.

Rubio made it clear he finds the allegations to be credible, but added a note of caution, should Moore emerge victorious despite the scandal.

"This information is before the voters of Alabama," Rubio told Fox News' Laura Ingraham. "And if they elect him and then you as a Senate have ethics hearings to remove him from office or something like that, that gets more complicated. That's a little bit more difficult because voters will have this information before them when they vote for him if, in fact, he is elected."

Rubio was addressing the prospect of a vote to expel Moore, which was raised this week by Republican Sen. Cory Gardner, R-Colo.

"If (Moore) refuses to withdraw and wins, the Senate should vote to expel him, because he does not meet the ethical and moral requirements of the United States Senate," said Gardner, who is chairman of the National Republican Senatorial Committee. Expulsion, a historically rare event in the Senate, would happen if two-thirds of senators present vote in favor of it.