Two more high-profile trials related to the attack are due to begin next month.
Four other Oath Keepers members face seditious conspiracy charges, as do members of the right-wing Proud Boys group, including its former chairman Enrique Tarrio.
Meggs, who heads the Oath Keepers' Florida chapter, was the only defendant besides Rhodes in this trial who played a leadership role in the organization.
Rhodes in 2009 founded the Oath Keepers, a militia group whose members include current and retired U.S. military personnel, law enforcement officers and first responders.
[1/4] Oath Keepers founder, Stewart Rhodes, speaks during the Patriots Day Free Speech Rally in Berkeley, California, U.S. April 15, 2017.
They denied plotting any attack or seeking to block Congress from certifying the election results, though Watkins admitted to impeding police officers protecting the Capitol.
Caldwell, who like Rhodes did not enter the Capitol building and never formally joined the Oath Keepers, tried to downplay some of the inflammatory texts he sent around the attack. »