Democratic presidential candidate U.S. Sen. Bernie Sanders (I-VT) speaks at the Des Moines Register Soapbox at the Iowa State Fair on August 15, 2015 in Des Moines, Iowa.
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Poll: Sanders grabs lead in New Hampshire
State of the Union
Vermont Sen. Bernie Sanders has opened up a 9-point lead over Hillary Clinton in New Hampshire and is closing ground on the Democratic front-runner in Iowa, according to an NBC News/Marist poll.
1:21 • Source: CNN
Meet Bernie Sanders 16 videos
Democratic presidential candidate U.S. Sen. Bernie Sanders (I-VT) speaks at the Des Moines Register Soapbox at the Iowa State Fair on August 15, 2015 in Des Moines, Iowa.
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Poll: Sanders grabs lead in New Hampshire
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Bernie Sanders still feels the bern
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Sanders: Democrats will work with Trump if ...
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Republican presidential candidate Donald Trump addresses a rally against the Iran nuclear deal on the West Lawn of the U.S. Capitol September 9, 2015 in Washington, D.C.
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Can Trump be trusted with nuclear weapons?
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SANTA MONICA, CA - JUNE 07: Democratic presidential candidate Senator Bernie Sanders (D-VT) greets supporters at an election-night rally on June 7, 2016 in Santa Monica, ia. Hillary Clinton held an early lead in today's California primary. (Photo by Scott Olson/Getty Images)
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Five moments from Bernie Sanders' improbable run
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Fear, anger over potential 'Muslim registry'
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Bernie Sanders says he will work with Donald Trump
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Student slams Clinton
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Student bashes Clinton ... at Clinton event
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Bernie Sanders gets emotional at DNC roll call
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Sen. Bernie Sanders speaks to reporters in Oakland, California. May 30, 2016.
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Secret Service rush stage at Bernie Sanders rally
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Bernie Sanders takes the stage at the DNC Convention
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Bernie Sanders takes the DNC stage, crowd goes crazy
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Bernie Sanders speaks to members of the press before being introduced at the Allen Temple Baptist Church in Oakland, California on May 30, 2016.
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It's 'Bernie or bust' for some Sanders supporters
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U.S. Sen. Bernie Sanders (I-VT) speaks during a campaign rally with democratic presidential nominee former Secretary of State Hillary Clinton at University of New Hampshire on September 28, 2016 in Durham, New Hampshire.
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Sanders walks fine line on Clinton hacked audio tape
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Sanders' new message to his supporters
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Who voted for Sanders and can Trump win them over?
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FAIRFIELD, CA - JUNE 03: Democratic presidential candidate, U.S. Sen. Bernie Sanders (D-VT) speaks during a campaign rally at Cloverdale Municipal Airport on June 3, 2016 in Cloverdale, California. Five States including California will hold the final Super Tuesday primaries next week. (Photo by Ramin Talaie/Getty Images)
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What the end of the Sanders primary campaign looks like
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