What is the process by which Congress can override a presidential veto?

The process by which Congress can override a presidential veto is established by the U.S. Constitution, specifically in Article I, Section 7. According to this provision, Congress must achieve a two-thirds majority vote in both the House of Representatives and the Senate to successfully override a veto. This requirement emphasizes the importance of a significant consensus among lawmakers to counter the executive authority represented by the presidential veto.

A two-thirds majority vote ensures that only legislation with substantial support can become law despite the President’s objections, thus maintaining a system of checks and balances among the branches of government. This mechanism is designed to prevent the potential for a single political party or the executive branch from holding too much power over the legislative process.

The other options do not align with the constitutional requirement for veto overrides. A simple majority vote would not be sufficient to counter the President's veto, as it only reflects a lower threshold of support. Unanimous consent is a different parliamentary procedure that relates to agreement among all members present and isn’t applicable to overriding a veto. Judicial review pertains to the power of courts to evaluate the constitutionality of legislative and executive actions, which also does not involve the process of overriding a veto.