Progressive Politics

Serious answer: Because they're sycophants. People call Trump all kinds of names, but the only thing that truly matters is that he's the poster boy for Narcissistic Personality Disorder. I invite you all to have a read and get your head around the subject. It explains every single thing about Trump. (Aside from the obvious dementia that's set in the past 4 years or so.)

To Trump's mind, anyone who says he's a great man, is automatically smart and qualified. He had a few great picks first time around, but they crossed him one way or the other and were suddenly dumb and unqualified.

If you've never been around a hardcore narcissist, the idea of such a person is truly hard to comprehend. Everyone throws that word around willy nilly, but it's a diagnosis, with meaning and criteria. For example, people often point out his lies. Obvious, right? But in his mind, he can't lie. His brain will rearrange contrary facts to mean that someone else was wrong. Back to your question, he requires unquestioning sycophants to satisfy his "never wrong" mentality. Anyone calling him out causes brief cognitive dissonance, and that's poison to most of us, really hurts, but it's shear hell for a narcissist. For a minute anyway. :)

As to the confirmations, plenty of Republican lawmakers tanked their careers by so much as seeming to go against Trump, in even the smallest ways. They now have two choices: Ride the tiger they created and hope they can still have some influence, or, defy him and have no influence.

I can expand on that all night long, but that's the bones of the story.