Comey said that the FBI didn’t have an open investigation into Trump when he left the agency but added, “That's a question that will be answered by the investigation, I think.”

That potentially signals that special counsel Robert Mueller is investigating possible collusion between Trump and Russia.

Cotton immediately pivoted to statements by Sen. Dianne Feinstein (D-CA) that she wasn’t aware of evidence that Trump colluded with Russia. Just guessing that both Comey and Mueller know a little more about possible Trump-Russia collusion than Feinstein does, and Comey doesn’t want to corrupt that investigation in any way.