As Christie Stands By Trump, New Jersey Supporters Wonder Why
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Bernie Sanders and Donald Trump deliver victory speeches at their respective watch parties in New Hampshire. Jewel Samad/AFP; Joe Raedle/Getty Images hide caption

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Republican Chris Christie of New Jersey has invested nearly his entire campaign on New Hampshire. A poor result will almost certainly effectively end his candidacy. Robert F. Bukaty/AP hide caption

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Thanks to the current nomination calendar, U.S. presidential candidates (like Chris Christie, pictured at the 2015 Iowa State Fair) get lots of practice at flipping pork chops. Scott Olson/Getty Images News hide caption

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Students from Manchester University visit the caucus exhibit at Iowa's state museum in Des Moines Scott Detrow/NPR hide caption

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Politics 101: A College Class Gets Up Close And Personal With The Iowa Caucuses
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Republican presidential candidate Sen. Marco Rubio, R-Fla. holds a rifle during a campaign stop Jan. 15, 2016, at Sturm, Ruger & Co., in Newport, N.H. Matt Rourke/AP hide caption

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Establishment Republicans Scramble To Top Trump
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Republican presidential candidate and New Jersey Gov. Chris Christie campaigns in Manchester, N.H., in August. Michael Dwyer/AP hide caption

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PAC Supporting Christie Scoops Up Voter Data Across New Hampshire
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An American soldier carrying equipment walks past an American flag at Incirlik Air Base in Adana, Turkey, as U.S. Air Force war planes are used against ISIS. Anadolu Agency/Getty Images hide caption

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Republican presidential candidate and New Jersey Gov. Chris Christie and his wife Mary Pat Christie in Londonderry, NH on Tuesday. Allegra Boverman/NHPR hide caption

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In Wake Of Paris Attacks, Chris Christie Sees An Opportunity
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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

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