“Other than Moore being an ultra-conservative, which I want for sure, how will this benefit Trump?”
I would suggest not using Leftist / Establishment labels. Why call Judge Moore an “ultra” conservative when we never see Leftists slapped with an extremist label like that?
Judge Moore is a West Point graduate, Army veteran and of course an attorney. How crazy does that make him sound?
Anyway, putting an anti-McConnell Republican in the Senate helps Trump by putting more pressure on the Turtle to perform. Plus it would inspire conservatives by signaling that they can be elected despite opposition from the out-of-state big money RINO crowd.
“Other than Moore being an ultra-conservative, which I want for sure, how will this benefit Trump?”
Trump negotiated with the Establishment. His endorsement of “Big Lou” came in exchange for something that appears the Establishment hasn’t lived up to. I think McCain threw a monkey wrench into the works to make sure Trump lived up to his end of the bargain.