purge

“Stalin’s purges were worse than any plague or infectious disease,” Zeldovich writes.

He and McCarthy instigated a massive investigation and purge of government employees whom they accused of being communists or outed as homosexuals.

Former Rep. Gaetz, Trump’s nominee for attorney general, has promised to purge the Justice Department and FBI of anyone who might get in the president’s way.

Trump learned the wrong lesson from that, which is that he's not focused enough on purging the party.

His choice for defence secretary, for example, has called for a purge of military chiefs enacting “woke” policies.