Trump ally Steve Bannon has surrendered to authorities to face contempt of Congress charges after refusing to give evidence about the Capitol riot.
Mr Bannon defied a summons to testify on what he knew about plans for the protest that ended with Trump supporters storming Congress.
On Friday, the justice department formally charged Mr Bannon, a former Trump White House strategist.
He now faces up to a year in prison and a USD$100,000 fine.
67-year-old Steve Bannon surrendered to officials at the FBI’s Washington DC field office on Monday morning.