From my court guy Zen Master:
Judge Ed Carnes (11th Circuit) is assuming senior status when his successor is confirmed.
This means that Trump will appoint at least 52 circuit judges; he needs 4 more vacancies to occur (very possible) to be able to tie Carter’s term record of 56!
I don't know for sure, but I think that Trump has appointed the majority of the Federalist Society folks that are eligible for Federal judgeships.
I'm going to do a scorecard eventually. I had more than 50 at last count.