Chansley was one of the first people to enter the Capitol building on Jan. 6, shirtless with an American flag spear, face paint, and furry horns.
He was arrested three days after the riot and originally charged with six crimes, but pleaded guilty Friday to one felony count of obstructing an official proceeding.
CAPITOL POLICE OFFICERS SUE TRUMP, ALLIES OVER JAN. 6 RIOT
An Arizona man seen in photos and video of the mob wearing a fur hat with horns was charged in the Capitol riot chaos. Jacob Anthony Chansley, who also goes by the name Jake Angeli, was taken into custody Saturday, Jan. 9. (AP Photo/Manuel Balce Ceneta, File)