No, the president cannot make laws or change laws alone. The power to make and pass laws is vested in the legislative branch of government, which in the United States consists of the Congress (the House of Representatives and the Senate). The president can propose legislation and work with Congress to shape and advocate for specific laws, but it is ultimately the Congress that creates, passes, and changes laws. Once a bill is passed by both chambers of Congress, it is presented to the president for approval or veto. The president can sign the bill into law or veto it, but Congress can override a presidential veto by a two-thirds majority vote in both chambers.
