Who has the power to veto bills?

The power to veto bills is held by the President of the United States. This authority is established in the U.S. Constitution, specifically in Article I, Section 7, which outlines the legislative process and the President's role in it. When Congress passes a bill, it is sent to the President for approval. The President can then either sign the bill into law or veto it, sending it back to Congress with explanations for the veto. This veto power serves as a check on legislative authority, ensuring that the President has a say in the laws that govern the country.

In this context, the Chief Justice, the Speaker of the House, and the Senate Majority Leader do not possess veto power. The Chief Justice's role pertains primarily to the judiciary, interpreting laws rather than rejecting legislative proposals. The Speaker of the House and the Senate Majority Leader have significant influence over legislative processes and agenda-setting but do not have the authority to veto bills. Thus, the unique power of veto resides exclusively with the President, making the correct answer clear.