There won't BE any elections after 2020 if Trump wins reelection with GOP controlling both chambers of Congress, or even if they control the Senate.
Don't be silly. Of course there will.
And even if he wins it's pretty unlikely he'd regain the House, there's a chance he might win and lose the Senate too. That would probably be the most entertaining scenario. Without his enablers in congress he'll retreat to his residence and slowly go totally bonkers.
That's the outcome I'm hoping for because they will be extremely painful and devastating to the Republican Party.
But however it turns out it aint gonna be the end of elections as we know them.