The 4th Democratic debate

The first Democratic debate of 2016 kicked off in Charleston, S.C. Former Secretary of State Hillary Clinton, Sen. Bernie Sanders and former Maryland Gov. Martin O’Malley duked it out on Sunday night in a debate hosted by NBC News. There was no shortage of heated exchanges in what is becoming an increasingly contentious campaign. (GMA)

Here are some highlights from the final debate before the Iowa caucuses.

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