alt Hacker NewsThe president has a huge say in which bills and budget items are passed, they routinely put enormous pressure on individual senators to whip votes for their agenda. This goes double or even triple for Trump! Congress might literally create the budget, but in our age they're – at the bare minimum – starting from the president's agenda and working with him to pass what he wants first.
Sure, when the party controlling both members of Congress matches the President. Less so when it doesn’t. Some of the biggest reductions in the growth of spending come when the parties do not match for that very reason.