On this episode of "Politics Nation," Donald Trump appears on NBC’s "Meet the Press" with Kristen Welker and doubles down on ending birthright citizenship and imposing tariffs on Canada and Mexico. Plus, NBC News Foreign Correspondent Meagan Fitzgerald has the latest on the fall of Syria’s government after 50 years of rule under Bashar al-Assad. New York Rep. Adriano Espaillat joins "Politics Nation" to discuss how both President Biden and incoming president Trump are reacting to the news. And Chicago Mayor Brandon Johnson talks about how he and mayors of many cities across the U.S. plan to handle Trump’s deportation plans.