Harrica (Harris America) should be separated from Trumplica (Trump America).
This nation is too ideologically divided; Trumplica should be able to have Trump become their King in an absolute monarchy if they so choose; Harrica should be allowed to break away and join Canada. This should be done peacefully, and I believe this regardless of who wins in 2024; large numbers of people will riot if things don't go their way regardless of who wins.
The US should just split up and Harrica should get annexed by Canada. That I think is the most pragmatic way for both sides to get what they want.