What is required to override a presidential veto?

To override a presidential veto, a two-thirds majority in both houses of Congress is required. This threshold is stipulated in Article I, Section 7 of the U.S. Constitution, which outlines the legislative process and the powers of the President. The purpose of this requirement is to ensure that there is significant legislative consensus against the President's decision to reject a bill, reflecting a strong majority support among elected representatives.

A simple majority in Congress does not suffice because it does not demonstrate the necessary level of agreement needed to counteract the President's veto, which is meant to be a significant check on legislative power. A unanimous vote in the Senate is far too high of a requirement, as it essentially demands 100% agreement among all senators, which is rarely achievable in practice. Lastly, a majority vote from the Supreme Court does not apply here; the Supreme Court's role is to interpret laws and does not involve legislative voting or veto overrides. Thus, the two-thirds majority in both houses represents a balanced approach to legislative authority and presidential power.