More people are pulling their support for Trump every day because he’s not listening to them and he is generally making things more expensive while stating the opposite. Gas price is a big one, it’s directly related to the Iran war, there’s no clear answer why he started it, and he started the war right before the election so we’re seeing the effects of the recency bias.

Many Republicans have spent the last few years rallying behind Trump because they saw it as an easy way to get votes, but now that he’s losing popularity the entire republican party loses votes by association. Trump became the face of the party and now there is no easy way to undo it.