I think it's the latter. Maybe all of the GOPe will blame Trump for McCarthy not getting the Speaker position, by him supporting McCarthy.
Trump probably feels like McCarthy is going to be speaker and he doesn’t want to have yet another enemy. I understand that perspective, can’t fight everyone all at once but I don’t think he understands, any longer, that the people don’t just hate Democrats, the Repukes are just as hated. He didn’t become President because he had any insider support, he had none and that worked imnhis favor. He may now have a new way of thinking. I was able to become President but I wasn’t able to pass the laws I wanted. He can do more good not passing the laws and pushing for good laws than he’ll get with compromising at this point.