Interesting. Has Congress ever decided to block the budget? And what would that do to the presidency?
(In Australia, a rarely-used but possible tactic is to "Block Supply" - if the opposition controls the Senate, the Government has to convince them that the budget is realistic and fair. If they cannot do this, the opposition is within its rights to reject it. A government cannot govern without money, and if this happens the Governor General has the power to dismiss the government and call for a new election. It is therefore possible for the hostile senate to force an election in this way, but it is considered an extreme measure, and whilst it's been threatened a few times, it has actually only ever been done once - resulting in the dismissal of the Whitlam Government in 1975.)