Congress isn't willing to do anything about it, because the president threatens to primary anyone who opposes him. The president has enough political clout amo

Congress isn't willing to do anything about it, because the president threatens to primary anyone who opposes him. The president has enough political clout among his own party for that to be a real threat. That will continue to be a threat until the president messes up badly enough that he doesn't command that level of support within his own party (or until he messes up so badly that Congress will impeach him anyway, even if it costs them their jobs).