President of the United States

The President was the political leader of the United States of America.

For most of America's history, the President was based in the White House, in the city of Washington, D.C.

In 1969, the President was regarded as one of the most powerful people on Earth. (DW: Day of the Moon)

19th century

 * Thomas Jefferson (BFA: Urgent Calls)
 * James Buchanan (TN: Blood and Hope)
 * Abraham Lincoln (DW: The Chase; TN: Blood and Hope)

1930s

 * Herbert Hoover (DW: Daleks in Manhattan)

1950s

 * Dwight D. Eisenhower (DW: Dreamland)

1960s

 * John F. Kennedy (DW: Silver Nemesis, Rose, Tooth and Claw, MA: Who Killed Kennedy)
 * Richard Nixon (DW: The Impossible Astronaut/Day of the Moon)

1970s

 * James Carter (EDA: Option Lock, Interference - Book One)

1980s

 * Ronald Reagan (EDA: Option Lock, Interference - Book One)
 * George H. W. Bush (EDA: Interference - Book One)

1990s

 * Carroll (DWM: Rennigan's Record)
 * Bill Clinton (EDA: Placebo Effect)
 * Tom Dering (EDA: Option Lock, PDA: Millennium Shock)

2000s

 * Springsteen (NA: Eternity Weeps, EDA: Interference - Book One)
 * Norris (NA: Cat's Cradle: Warhead, EDA: Interference - Book One)
 * George W. Bush (WC: Death Comes to Time)
 * Arthur Coleman Winters (DW: The Sound of Drums) - referred to as "President Elect"; killed by the Toclafane in May of 2008.
 * Felix Mather (EDA: Trading Futures)
 * An unnamed President affected by Martin Trueman's hypnosis (SJA: Secrets of the Stars)
 * Barack Obama (DWM: Ghosts of the Northern Line, DW: The End of Time)
 * The Master - Briefly, when he turned the entire population of Earth, including Barack Obama, into a copy of himself. (DW: The End of Time)

Unknown decade

 * Schwarzenegger (DW: Bad Wolf)

18th century

 * Benjamin Franklin (BFA: Seasons of Fear, Neverland)

1940s

 * Harry S. Truman (DWA: Doctor Who The Official Annual 2011)