Who has the authority to sign bills into law?

The authority to sign bills into law rests with the President of the United States. Once a bill has been passed by both the House of Representatives and the Senate, it is sent to the President for approval. The President can either sign the bill, which then becomes law, or veto it, sending it back to Congress for further consideration.

This process is outlined in the U.S. Constitution, specifically in Article I, which establishes the legislative branch and details how laws are made. By having the power to sign or veto legislation, the President plays a crucial role in shaping laws and, consequently, national policy. This authority underscores the system of checks and balances within the U.S. government, as the legislature (Congress) and the executive (President) must collaborate in the lawmaking process.