Answer: Veto
Explanation: The president’s power to refuse to pass a bill into law is know as a veto. After a bill has been passed by congress, it is then forwarded to the President who may choose to refuse the bill or approve it within 10 days, inclusive of Saturdays but not Sundays. If the president refuses the bill, it can only be enacted into law if two-thirds of both the Senate and the House vote to reverse the President's decision.