How is the president involved with the laws?

The President is the head of the Executive branch, he is in charge of executing the laws created by Congress, as well as approving or vetoing laws passed by Congress. He is not allowed to introduce legislation directly. ======================================================= Actually he can - It is called a presidential executive order. From Wikipedia... An executive order in the United States is a directive issued by the President, the head of the executive branch of the federal government. In other countries, similar edicts may be known as decrees, or orders-in-council. Executive orders may also be issued at the state level by a state's Governor. U.S. Presidents have issued executive orders since 1789, usually to help direct the operation of executive officers. Some orders do have the force of law when made in pursuance of certain Acts of Congress, when those acts give the President discretionary powers. Critics have accused presidents of abusing executive orders, of using them to make laws without Congressional approval, and of moving existing laws away from their original mandates.[1] Large policy changes with wide-ranging effects have been effected through executive order, including the integration of the armed forces under Harry Truman and the desegregation of public schools under Dwight D. Eisenhower. One extreme example of an executive order is Executive Order 9066, where Franklin D. Roosevelt delegated military authority to remove all people (used to target specifically Japanese Americans and German Americans) in a military zone. Source: http://en.wikipedia.org/wiki/Executive_order_(United_States)