If the president vetoes the budget, congress

must adopt the budget

needs a two-thirds majority to override the veto

needs a simple majority to override the veto

adopts the previous year’s budget until a compromise is made

needs a two-thirds majority to override the veto

"Needs a two-thirds majority to override the veto"

Explanation:

In the United States, the president has the ability to veto the legislation that has passed through Congress, but this right is not absolute. A qualified 2/3 majority of both houses can pass a law, even against a presidential veto; however, if the proposed law has only a simple majority, the president's veto is decisive.

b. sec, foreign relations