In “Michael Flynn’s Holy War,” FRONTLINE and the Associated Press examine how the retired three-star general and first national security adviser to former President Donald Trump has emerged as a leader in a far-right movement that seeks to put its brand of Christianity at the center of American civic life and institutions and is attracting election deniers, conspiracists and extremists from around the country.

Drawing on interviews with 125 people, including Flynn’s family, friends, critics, current and former colleagues — and Flynn himself — the documentary illustrates how Flynn’s influence has grown since the January 6, 2021, insurrection at the U.S. Capitol — and how his pedigree and military career, combined with his connection to high-powered, well-financed political groups, have allowed him to travel the country and advance his movement since January 6.

In the run-up to the 2022 midterm elections, “Michael Flynn’s Holy War” is a revealing look at the rise of one of the Republican party’s most active and polarizing political allies, and what his growing influence might mean for future U.S. elections.

“Michael Flynn’s Holy War” is supported by Preserving Democracy, a public media reporting initiative from The WNET Group. The documentary is a FRONTLINE production with Midnight Films, LLC in partnership with The Associated Press. The director and writer is Richard Rowley. The producers are Paul Abowd and Jacqueline Soohen. The reporters are Michelle Smith, Paul Abowd and Richard Rowley. The correspondent is Michelle Smith. The international investigations editor for AP is Ron Nixon. The editor-in-chief and executive producer of FRONTLINE is Raney Aronson-Rath.