Hillary Clinton and Bernie Sanders debate one-on-one. Republican race shakes up after Iowa.

Hillary Clinton and Bernie Sanders met in their first one-on-one debate where they clashed over Wall Street, foreign policy and what it means to be a progressive. Days before the New Hampshire primary, Sanders leads Clinton by 20 points in the Granite State. On the Republican side, Donald Trump’s second-place finish in Iowa has shaken up the race for the GOP nomination. And third-place finisher Marco Rubio is under attack by other “establishment” candidates including Jeb Bush and Chris Christie. We get a report on the state of the race from The Washington Post’s Robert Costa and AP’s Lisa Lerer in New Hampshire and LA Times’ Doyle McManus and Morning Consult’s Reid Wilson in Washington.