The former leader of the Proud Boys has been jailed for 22 years, the longest sentence handed to anyone involved in the US Capitol riot.
Henry "Enrique" Tarrio was convicted of seditious conspiracy, a US Civil War-era charge, and other counts in May.
Tarrio, 39, was not in Washington during the riot, but the court heard he helped organise the far-right group's involvement.
Prosecutors had asked for a sentence of 33 years in prison.
Before he learned his fate on Tuesday, Tarrio apologised to police and residents of Washington DC for his role in the 6 January 2021 riot.
"I am extremely ashamed and disappointed that they were caused grief and suffering," he told Washington's federal courthouse. "I will have to live with that shame for the rest of my life."
Tarrio, who was wearing an orange jail uniform, added: "I was my own worst enemy.
"My hubris convinced me that I was a victim and targeted unfairly."
