Several Republican lawmakers on Wednesday were astounded by news that President-elect Donald Trump planned to tap Rep. Matt Gaetz (R-Fla.) as the top law enforcement official in his coming administration.

Collins told reporters Wednesday, "the President has the right to nominate whomever he wishes, but I'm certain that there will be a lot of questions."

Gaetz has resigned from Congress effective immediately. His resignation will end the probe by the Ethics Committee, which does not investigate members after they have left Congress.