Steve Bannon had been summoned by the Committee of Inquiry into the Capitol attack - but had refused to testify.
He also withheld requested documents.
Now he is being charged.
Washington - Ex-President Donald Trump's former chief strategist Steve Bannon has been charged on two counts of disregard for Congress.
He is accused of having resisted the summons of the House of Representatives' committee of inquiry to forcibly storm the Capitol, the US Department of Justice said on Friday.
In addition, he did not provide the body with the required documents.
Bannon faces up to a year in prison
If convicted, Bannon could face a prison sentence of at least 30 days and up to a year per charge.
After Bannon, 67, refused to cooperate with the investigation, the House of Representatives and the majority of Democrats paved the way for criminal action against Bannon in late October.
The decision on a possible charge was then the responsibility of the Justice Department.
Minister Merrick Garland has now said that the indictment of a so-called grand jury against Bannon demonstrates that the judiciary adheres to the facts and the law, which applies equally to all people.
What did Bannon know before storming the US Capitol?
Supporters of Republican Trump stormed the seat of the US Congress on January 6th.
Five people were killed, including a police officer.
Trump had to face impeachment proceedings for the attack because he had previously incited his supporters in a speech.
In the end, he was acquitted.
Bannon, in turn, is suspected of having had prior knowledge of plans for violent protests.
The day before he said in his podcast, among other things: "Tomorrow all hell breaks loose." Dpa
