If the President of the United States refuses to sign a bill into law, he vetos it and returns it to the Congress.
The Congress can, by 2/3 vote of both the House of Representatives AND the Senate, override the President's veto, and the law goes into effect without the President's approval.
legislative branch
2/3 of both houses in Congress
Each chamber must have a 2/3rds vote in order to override a presidential veto. Congress rarely overrides a presidential veto.
2/3 to override a presidential veto
Congress
Congress can override a presidential veto
A two-thirds majority vote in both the House of Representatives and in the Senate is required to override a presidential veto.
Legislative
It takes a 2/3 majority of both houses of Congress to override a Presidential veto.
To override a President's veto Congress needs to have 2/3 or more of the vote.
To override a presidential veto, both the House of Representatives and the Senate must pass the bill again with a two-thirds majority in each chamber. This means that at least 290 members of the House and 67 members of the Senate must vote in favor of the bill despite the president's veto. If successful, the bill becomes law without the president's approval.
67 senators and 291 members of the house have to vote to override the presidential veto