<Li> Informal meetings between legislators and executive officials </Li> <Li> Congressional membership: each state is allocated a number of seats based on its representation (or ostensible representation, in the case of D.C.) in the House of Representatives . Each state is allocated two senators regardless of its population . As of January 2010, the District of Columbia elects a non-voting representative to the House of Representatives along with American Samoa, the U.S. Virgin Islands, Guam, Puerto Rico, and the Northern Mariana Islands . </Li> <P> The executive power in the federal government is vested in the President of the United States, although power is often delegated to the Cabinet members and other officials . The president and vice president are elected as running mates by the Electoral College, for which each state, as well as the District of Columbia, is allocated a number of seats based on its representation (or ostensible representation, in the case of D.C.) in both houses of Congress . The president is limited to a maximum of two four - year terms . If the president has already served two years or more of a term to which some other person was elected, he or she may only serve one more additional four - year term . </P> <P> The executive branch consists of the president and those to whom the president's powers are delegated . The president is both the head of state and government, as well as the military commander - in - chief and chief diplomat . The president, according to the Constitution, must "take care that the laws be faithfully executed", and "preserve, protect and defend the Constitution". The president presides over the executive branch of the federal government, an organization numbering about 5 million people, including 1 million active - duty military personnel and 600,000 postal service employees . </P>

Who's the head of the executive branch of the government