He has a MAGA agenda, but he has no problem supporting Republicans who are globalists ... because he always wants he support a WINNER no matter what.
Do not confuse winning and getting your objective.
In this crap legislation, Trump is still in charge as the executive in the specifics of HOW it is done. I trust him.
He surely knows that fighting against GOP Senators and House members who are elected by wide margins in their own states and districts is generally a losing proposition.