In 2014, Mark Finchem disclosed that he was a member of the Oath Keepers, one of the largest far-right anti-government groups in the United States.

• Spread Anti-Government Conspiracy Theories
  The Oath Keepers were founded in 2009 after the election of President Barack Obama, and organized around a set of conspiracy theories about the federal government working to destroy Americans’ liberties.
• Worked to Overturn the 2020 Election Results
  The group has participated in multiple standoffs with federal officials and openly urged President Trump to reject the results of the 2020 election and remain in office.