Never, until he doesn’t obey Trump.

Gaetz was reportedly two days away from the House Ethics Committee releasing its report on his… activities with minors - which was going to be damning. Gaetz instead quits congress to nullify their jurisdiction, and Trump gets easy blackmail over his new AG.

Obviously having a crony run the Justice Department kills all of Trumps investigations, but it also lets him steer the department as he pleases.