Trump was certainly an outlier, but the observation holds.

Trump (come January anyway) is a lame duck now, especially with a blue Congress. He won't get anything substantial through Congress and everyone's attention will will rapidly shift to who is running in 2028. Nobody on the R side will be seeking or hoping for his endorsement; his leverage over them has been neutralized; they will be working on new messaging to get their traditional voters back. That campaign started on Wednesday.