Former President Donald Trump has officially endorsed a plan, created by a man who has self-identified with the Oath Keeper militia, that aims to have Trump supporters consolidate control of the Republican Party.

The plan, known as the “precinct strategy,” has been repeatedly promoted on Steve Bannon’s popular podcast. As ProPublica detailed last year, it has already inspired thousands of people to fill positions at the lowest rung of the party ladder. Though these positions are low-profile and often vacant, they hold critical powers: They help elect higher-ranking party officers, influence which candidates appear on the ballot, turn out voters on Election Day and even staff the polling precincts where people vote and the election boards that certify the results.

“Just heard about an incredible effort underway that will strengthen the Republican Party,” Trump said Sunday in a statement emailed to his supporters. “If members of our Great movement start getting involved (that means YOU becoming a precinct committeeman for your voting precinct), we can take back our great Country […]