Henry "Enrique” Tarrio, the former chairman of the far-right Proud Boys, was ordered to serve 22 years in prison for his role in a seditious plot to halt the U.S. government’s peaceful transfer of power, the stiffest punishment so far for those involved in the attack on the nation’s Capitol.

Tarrio, 39, was sentenced Tuesday by U.S. District Judge Timothy Kelly in Washington. Previously, the longest sentence among more than 1,100 prosecutions tied to the Jan. 6, 2021, Capitol riot was 18 years for Oath Keepers leader Stewart Rhodes and for another Proud Boys leader, Ethan Nordean.

Federal prosecutors had sought a 33-year prison term for Tarrio. He was convicted in May along with three others of seditious conspiracy for their efforts to prevent Congress from approving the 2020 election win by President Joe Biden, which culminated in a mob of former President Donald Trump’s supporters storming the Capitol.