He's got the entire congress! He's got the entire universe of industrial policy to advance whatever domestic improvements he wants to pursue. Clearly they even have the political capital and appetite to do a massive tax increase!
The Republicans in Congress don't all want the same things, and they have very narrow majorities, so yes, he does have to negotiate with them.
The Republicans in Congress don't all want the same things, and they have very narrow majorities, so yes, he does have to negotiate with them.