The far right party of the orange fatty is still a large minority rump of the electorate. But the less corrupt, less extreme wingnuts seem to be abandoning him.
Add the incompetent response to the coronavirus and the recession it will cause and anyone with a mobile vote is going to move out of the Trump column.
If the 2020 election is free and fair, Biden wins for these reasons alone. Hope they remove the whole lot of them.
http://www.nytimes.com/2020/03/09/opinion/joe-biden-never-trump.html