( CNN) Acting FBI Director Andrew McCabe said President Donald Trump hasn’t made any effort to impede the inquiry into possible ties between his campaign and Russia — but a top House Democrat disagrees.

“I don’t think you can say so categorically he’s attained no effort to interfere, ” Rep. Adam Schiff, the top Democrat on the House Intelligence Committee, said in an interview with CNN’s “Erin Burnett Outfront” Thursday night.

“I think that the firing was all about the Russia investigation, ” he continued. “So I’m certain that what Mr. McCabe said may be true in the sense that the President isn’t calling line agents who are working on police investigations or, in other very ham-handed lanes, trying to interfere with the day-to-day operation of the investigation.”