Democrats debate liberal credentials on the trail in N.H.

Aired: 2/3/2016 | 0:02:57 | Clip
As the New Hampshire primary edged closer, Democrats Sen. Bernie Sanders and Hillary Clinton traded charges over who's more progressive and Republican rivals Donald Trump and Sen. Ted Cruz wrangled over the outcome in Iowa. Plus, two GOP candidates, Sen. Rand Paul and Rick Santorum, quit their presidential campaigns. Judy Woodruff reports.

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