Acting FBI Director Andrew McCabe promised Thursday he would not give President Trump updates on the status of the bureau's investigation into Russia's meddling in the 2016 election, after Trump indicated that fired former Director James Comey provided him with these sorts of updates.

McCabe appeared at a Senate Intelligence Committee hearing Thursday, and was asked by Sen. Ron Wyden, D-Ore., to explain the letter Trump sent notifying Comey that he was being fired. That letter said, "While I greatly appreciate you informing me on three separate occasions that I am not under investigation, I nevertheless concur with the judgement of the Department of Justice that you are not able to effectively lead the Bureau."

Wyden asked if it would have been wrong for Comey to give Trump that kind of information, and McCabe had no comment. But when Wyden asked if he would refrain from providing this kind of information to the president, McCabe answered, "I will."

No other source has yet confirmed that Comey ever relayed to Trump that he was completely out of the picture in the FBI's investigation.