“I think you have to call into question,” Bannon told Melber. “If somebody is actually out there trying to get information from foreign parties, you have to question it, yeah.”

“So if [Special Counsel Robert] Mueller could prove that about Donald Trump, that would concern you,” the MSNBC host told Bannon.

“It would definitely concern me, yes,” Bannon answered. “But the president has been pretty adamant that he didn’t know it and hasn’t known about it.”