The Secret Service code names for U.S. presidents

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Janny Scott discussing her book A Singular Woman: The Untold Story of Barack Obama's Mother (2011), touching on topics such as how the former president's parents met, the spurious “birther” claims about his country of origin, and his childhood experiences in Indonesia, among others.

Official White House Video

U.S. Pres. Barack Obama speaking at a memorial for the victims of the shooting in which Rep. Gabrielle Giffords was wounded, Tucson, Arizona, January 12, 2011.

Official White House Video

Pres. Barack Obama announcing that U.S. forces had killed Osama bin Laden, May 2011.

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Just days after the effective end of the Civil War, Abraham Lincoln was fatally shot by John Wilkes Booth.

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Export and import duties marked each phase of the U.S.–China standoff.

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After losing the 1968 race, Hubert Humphrey shared his thoughts on whether American presidents have too much power.

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Hubert Humphrey discusses the personalities of some of the 20th century's most memorable presidents.

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See what Hubert Humphrey has to say about how Congress, the Judiciary, and even public opinion can limit the way the president uses his power.