Four weeks to Iowa: Trump’s rhetoric going to dark extremes

With the leadoff Iowa caucuses only four weeks away, Donald Trump is taking his campaign rhetoric to dark extremes. We're getting new reaction to Trump's immigrant-bashing that's invoking comparisons to Nazi Germany. The GOP governor of New Hampshire Chris Sununu joins us live this hour. Also, two former Georgia election workers are suing Rudy Giuliani again after he was ordered to pay the women nearly $150 million in damages. We're going to tell you what they want now. Plus, Hamas releases video of three elderly Israelis its holding captive in Gaza. 

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