Massachusetts Democratic Sen. Elizabeth Warren and Vice President Biden at a ceremonial re-enactment of Warren's swearing-in on Jan. 3, 2013, in the Old Senate Chamber of the Capitol.
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Sen. Bernie Sanders, I-Vt., has gotten some of the biggest and most devoted crowds of the 2016 presidential race, including in Portland, Ore., this month, where he drew more than 19,000.
Actress Melissa Gilbert arrives at the Award of Excellence Star presentation for the Screen Actors Guild in 2007. Gilbert is trying to win a congressional seat from Michigan, where her husband is from.
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A supporter waves a Cuban flag in front of the country's embassy after it reopened for the first time in 54 years on July 20 in Washington, D.C. The embassy was closed in 1961 when U.S. President Dwight Eisenhower severed diplomatic ties with the island nation after Fidel Castro took power in a communist revolution.
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Hillary Clinton and her husband, Bill Clinton, celebrate his victory in the Democratic runoff for Arkansas Governor on June 8, 1982 in Little Rock, Ark. Clinton defeated former Lt. Gov. Joe Purcell.
Republican presidential candidate and TV personality Donald Trump arrives by escalator to the tune of "Rockin' in the Free World." Musician Neil Young did not approve of his song choice.
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