I think his personality just comes across being similar. The machismo, constantly blaming the media for things, etc etc. I think that stuff eventually turned people off from Trump. He is smarter than Trump, but I still think he comes across as an asshole. Plus, If Trump doesnt run, (which my gut feeling is he isnt going to run, but will tease it as long as he can), I am not sure how he is going to respond to not being the center of the Republican universe anymore, and I could see he and Desantis having issues. I could be wrong, but the next Republican primary is going to be batshit crazy I have a feeling.