What is the official veto power exercised by the president over legislation passed by Congress called?

The official veto power exercised by the president over legislation passed by Congress is called the Presidential Veto. This power allows the president to reject a bill or resolution that has been approved by both houses of Congress. When a president issues a veto, they send the bill back to Congress along with their reasons for rejecting it. This action serves as a check on the legislative branch, ensuring that the president has the opportunity to influence the creation of laws.

The Presidential Veto is outlined in the U.S. Constitution and allows the president to maintain a significant role in the legislative process, thus influencing the direction of national policy. If Congress wishes to override the veto, it must achieve a two-thirds majority vote in both the House and the Senate, which is a challenging feat.