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CHARLESTON, SC - JANUARY 17:  Democratic presidential candidates Martin OMalley (L), Hillary Clinton (C) and Senator Bernie Sanders (I-VT) participate in the Democratic Candidates Debate hosted by NBC News and YouTube on January 17, 2016 in Charleston, South Carolina. This is the final debate for the Democratic candidates before the Iowa caucuses.  (Photo by Andrew Burton/Getty Images)
CHARLESTON, SC - JANUARY 17:  Democratic presidential candidates Martin OMalley (L), Hillary Clinton (C) and Senator Bernie Sanders (I-VT) participate in the Democratic Candidates Debate hosted by NBC News and YouTube on January 17, 2016 in Charleston, South Carolina. This is the final debate for the Democratic candidates before the Iowa caucuses.  (Photo by Andrew Burton/Getty Images)

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Clinton now sees Sanders as threat

Judging by Hillary Clinton's attacks on Bernie Sanders during a primary debate, "something is going on inside" the Clinton campaign that shows her in worse shape even than recent polls, said Democratic Strategist Jamal Simmons.

Clinton now sees Sanders as threat

Judging by Hillary Clinton's attacks on Bernie Sanders during a primary debate, "something is going on inside" the Clinton campaign that shows her in worse shape even than recent polls, said Democratic Strategist Jamal Simmons.