This is how US politics work. The current president makes a proposal on how they would like for the budget to look, but it's just a proposal. The legislative br

This is how US politics work. The current president makes a proposal on how they would like for the budget to look, but it's just a proposal. The legislative branch (Congress) is actually responsible for creating the budget. They are not at all obligated to follow the proposal. The president has to agree to the budget submitted to him by Congress, so there's usually a lot of discussions between the two parties. The caveat here is that Congress can override a presidential veto.