Nikki Haley and Ron DeSantis Finally Go Head-to-Head

While Donald Trump took the stage alone at a competing town hall, Nikki Haley and Ron DeSantis debated one-on-one for the first time, days before the Iowa caucuses. But did their dueling barbs do more damage to their own campaigns than to the frontrunner? Plus, Chris Christie suspends his campaign before the New Hampshire primary, leaving questions about who will inherit his supporters and what his next political move might be.   Learn more about your ad choices. Visit megaphone.fm/adchoices