Bannon spent a total of some 20 hours in conversations with the team led by Mueller, who is investigating possible collusion between the Trump campaign and Russia as well as other issues that have arisen around the probe.

Bannon left his job as a senior White House adviser in August and returned to a leadership role at Brietbart, the right-wing news site based out of Washington. But he fell out of favor with the site’s financial backers, the Mercer family, after criticizing the president and his family in “Fire and Fury,” a book about the Trump administration published earlier this year by author Michael Wolff.