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Democratic presidential candidate Hillary Clinton, left, takes the stage at a town-hall meeting in Portsmouth, New Hampshire, on Tuesday, December 29. BRIAN SNYDER/Reuters/Landov
The U.S. Capitol is seen behind the Washington Monument as day breaks on Thursday, December 31. J. David Ake/AP
Shamans in Lima, Peru, hold a poster of U.S. presidential candidate Donald Trump as they perform a ritual of predictions on Tuesday, December 29. The ritual is an end-of-year tradition for the shamans, who called for world peace and wished good luck for the upcoming elections in the United States and Peru. MARIANA BAZO/Reuters/Landov
U.S. Sen. Marco Rubio, a Republican presidential candidate, playfully throws a snowball at his wife, Jeanette, as they take their two boys sledding in Des Moines, Iowa, on Wednesday, December 30. Andrew Harnik/AP
A light casts a shadow of U.S. Sen. Bernie Sanders as the presidential candidate speaks at a town-hall event in Muscatine, Iowa, on Tuesday, December 29. MARK KAUZLARICH/Reuters/Landov
Ohio Gov. John Kasich, a Republican presidential candidate, participates in a town-hall meeting in Nashua, New Hampshire, on Tuesday, December 29. MARY SCHWALM/Reuters/Landov
Marlon Motero puts up campaign signs for Republican presidential candidate Jeb Bush before a meet-and-greet event in Hialeah, Florida, on Monday, December 28. Joe Raedle/Getty Images
President Barack Obama is seen on a television screen congratulating people in Miami who had just been sworn in as naturalized U.S. citizens on Tuesday, December 29. Joe Raedle/Getty Images
Chicago Mayor Rahm Emanuel speaks during a news conference at City Hall on Wednesday, December 30. Emanuel returned home early from a family trip to address the recent police shootings that killed Bettie Jones and Quintonio LeGrier. Joshua Lott for The Washington Post/Getty Images
New Jersey Gov. Chris Christie, a Republican presidential candidate, poses for a photo with a visitor after speaking at a coffee house in Muscatine, Iowa, on Tuesday, December 29. Andrew Harnik/AP
President Barack Obama eats shaved ice during his holiday vacation in Kailua, Hawaii, on Sunday, December 27. HUGH GENTRY/Reuters/Landov