Members of Oath Keepers charged and face court on Friday

(KYMA, KECY/ CNN) - The January 6th investigation is moving forward with a far-right group called the Oath Keepers taking center stage in court.

The Justice Department has charged the leader of that group, Stewart Rhodes, along with 10 other members with seditious conspiracy related to the Capitol attack.

Sedition is characterized by the U.S. code as two or more people who conspire to overthrow the U.S. government or "prevent, hinder, or delay the execution" of U.S. law by force. It's punishable by a fine and up to 20 years in prison.

But it won't be an easy case as seditious conspiracy is rarely charged, politically loaded, and hard to prove in court. And that is something Rhodes' lawyer plans to use in his defense.

"Those are very serious charges but we do believe they have to prove it," said lawyer Jonathan Moseley. "And i know from the documents that they have, they knew last May and March that they came to be support services for the demonstration."

But as this plays out, one big question remains: could anyone else be implicated?

Rhodes will face a judge in Texas today and Edward Vallejo, an alleged member, will do the same in an Arizona courtroom.