The President of the United States was the head of government for the United States. The office of President of Earth was descended from the United States presidency. 
List of Presidents of the United States
Appearances
Former President Richard M. Nixon
List of Presidents of the United States 
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- George Washington
- Thomas Jefferson
- Abraham Lincoln
- Chester A. Arthur
- Grover Cleveland
- Theodore Roosevelt
- Warren Harding
- Harry S. Truman
- Richard Nixon
- Gerald Ford
- Jimmy Carter
- Ronald Reagan
- George H. W. Bush
- Bill Clinton
- George W. Bush
- Barack Obama
- Donald Trump
