New Jersey Gov. Chris Christie speaks at a No Labels Problem Solver convention in Manchester, N.H., in October 2012. Jim Cole/AP hide caption
Chris Christie
Monday
Tuesday
Chris Christie, left, makes a point as Mike Huckabee listens during Republican presidential debate in Milwaukee, Wis., on Tuesday. Morry Gash/AP hide caption
Thursday
Marco Rubio (center) was able to stand out even while being targeted by Jeb Bush (left), someone once described as a mentor. Donald Trump looks on. Mark J. Terrill/AP hide caption
Wednesday
Preparations underway in the Media Center at the third Republican debate on the campus of the University of Colorado in Boulder, Colo. Robyn Beck/AFP/Getty Images hide caption
Thursday
Nurse Kaci Hickox speaks to the media last year outside her home in Fort Kent, Maine. Hickox, who sharply protested being quarantined at a New Jersey hospital in 2014 after she returned from treating Ebola patients in West Africa, has filed a lawsuit against the state of New Jersey. Robert F. Bukaty/AP hide caption
Tuesday
In a frame grab made from AFPTV footage, Edward Snowden speaks from an unidentified location in October 2013. AFP/Getty Images hide caption
Wednesday
Pope Francis walks down the steps of his plane upon his arrival at Andrews Air Force Base, Md., on Tuesday. Andrew Harnik/AP hide caption
Wednesday
Republican presidential candidate Donald Trump participates in the first Republican presidential debate Aug. 6 at Quicken Loans Arena in Cleveland. John Minchillo/AP hide caption
Tuesday
Sen. Rand Paul's campaign responded in real time during last month's debate with videos on Twitter and Vine. Alex Wong/Getty Images hide caption
Wednesday
Donald Trump speaks to the media at the U.S.-Mexico border in July. The Libre Initiative's letter doesn't call out any candidates by name, but Trump has called for mass deportation and an end to birthright citizenship for immigrants. LM Otero/AP hide caption
Monday
Donald Trump arrives at the National Federation of Republican Assemblies on Saturday in Nashville, Tenn., ahead of his speech before the conservative group. Mark Humphrey/AP hide caption
Friday
Students protest the rising costs of college loans in Los Angeles in 2012. Citing bank bailouts, the protesters called for student debt cancellations. David McNew/Getty Images hide caption
Fact Check: Is Refinancing Student Debt Really Good Policy?
Thursday
Leading in the polls, Republican presidential candidate Donald Trump was at center stage during the first Republican presidential debate Thursday in Cleveland. John Minchillo/AP hide caption
Tuesday
New Jersey Gov. Chris Christie stands with (from left) his wife, Mary Pat Christie, and their children, Patrick, Sarah, Andrew and Bridget, on Tuesday at Livingston High School in Livingston, N.J. Mel Evans/AP hide caption
Republican presidential candidate and former Florida Gov. Jeb Bush speaks at a campaign event Saturday in Nevada. John Locher/AP hide caption