The third Democratic debate began with an apology from Sanders over news his staffers had improperly accessed Clinton campaign data. With the hatchet buried, a tepid debate ensued. On foreign policy, Sanders said he didn't support regime change like Clinton does. O'Malley, who tried and tried to interject, joined Sanders saying ISIS and not toppling Assad should be U.S. priority. Clinton said the U.S. could do both. Still, Clinton saved her hardest punch for Trump, the sole GOP candidate mentioned during the debate. Citing Trump's anti-Muslim rhetoric, Clinton said he was "becoming ISIS's best recruiter." The must-watch moments:

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