I need to check again, but I thought elected sheriffs were the highest law enforcement authority in any county. Could even arrest feds that violate their authority.

That said, election fraud will remove them if they exercise that authority. Individual counties will lose this, though showing systemic corruption with elections & getting multiple elected sheriffs on board with taking it down on a county level & exerting their authority at the same time (ie within a couple weeks/months/possibly year) against an already financially thin deep state could work to help drain the swamp without the legal/voting fraud repercussions that have been used in the past.

Just spit balling some game theroy here.