DHS Secretary Markwayne Mullin is sworn in as President Trump considers a deal to end the partial government shutdown. American Federation of Government Employees President Everett Kelley joins Meet the Press NOW to discuss the impacts of the shutdown on TSA employees and the deployment of ICE agents at airports. Backchannel talks between Iran and the U.S. continue as President Trump says the U.S. has "won." NBC News Chief Data Analyst Steve Kornacki looks ahead to the important elections happening in April.

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