Trump's new chief of staff needs to 'protect' Russia investigation, Democrat says

Trump's new chief of staff should protect Bob Mueller, John Podesta says.

"It's going to be his job to provide a bulwark against interference by the White House, which in the end of the day, [would] get them in more trouble rather than less,” Podesta said.

At a press conference Tuesday, the president said he is "disappointed" in Sessions and that he wants the attorney general "to be much tougher on the leaks from intelligence agencies, which are leaking like rarely have they ever leaked before, at a very important level."

"We will see what happens. Time will tell. Time will tell," Trump added.

The president's public criticism has led some observers to question whether Trump might try to replace Sessions with an attorney general who could oversee the Russia probe and potentially remove Mueller.

That possibility has prompted warnings from some Republicans as well as Democrats.

Beyond the Russia probe, Podesta said one question about Kelly's appointment as the new White House chief of staff is whether Trump will give the former general the authority fully do his job.

“I have no doubt that the president has told him that he has full authority,” Podesta said of Kelly. “The real question is will he allow him to exercise it.”