The constitution contemplates the political remedy of impeachment and removal from office. Not that Congress will do its job - it’s failed miserably on that count, in many ways, for as long as I have been alive.
And just how will they remove him? They don’t have an army to go into the WH and drag him out.
That's a moot point, considering the Congress isn't much displeased with the president's performance; plus, the president (and Congress) enjoys political popularity with the takers, which comprise a majority of the public.
I foresee the whole lot of them riding the federal government into an ash heap.