We're in a political realignment period right now as the Reagan era of US politics comes to an end. If you look at the end of the New Deal era, the mid/late 70s, you can see a ton of parallels to what we're experiencing now. Trump's presidency in that sense is analogous to Jimmy Carter's: a political outsider with a broader appeal beyond his party's typical constituents and comes in promising to completely change the system but who's largely hated by the political establishment both within his party and the opposition party who lacks political clout and thus lacks the ability to handle things the way he wants to.
The difference between now and then is that in the 1980 election Reagan, the challenger, was someone who did have the clout and personability to affect his agenda (not terribly dissimilar from Carter's) which was broadly popular with the electorate and complete the transition away from the New Deal era. Meanwhile the challenger in 2020, Biden, is very much a status quo candidate who's pushing an agenda (rolling back to the Obama era focus on social justice progressivism and the same Reaganite foreign policy we've had since 1980) that's becoming broadly unpopular.
The next political system, like it or not, is going to be in a more Trumpian mold in that it will be more populist in nature and a drawing down of Reagan style foreign policy. Either way I think this election is the end of the Reagan system and by 2024 the political landscape is going to look completely different.