Two days before Super Tuesday, NBC News National Political Correspondent Steve Kornacki previews what to watch. Former U.N. Ambassador Nikki Haley exclusively sits down with Kristen Welker to discuss how she plans to stay in the race. Rep. Debbie Dingell (D-Mich.) responds to the thousands of voters in Michigan who voted “uncommitted” in the state’s Democratic primary to protest President Joe Biden.
