Senator Markwayne Mullin (R-OK) will replace Kristi Noem as Secretary of Homeland Security. MS NOW Senior White House Reporter Vaughn Hillyard, Punchbowl News Co-founder Jake Sherman and former Assistant Chief Counsel for ICE Veronica Cardenas join Katy Tur to discuss President Trump's decision. MS NOW: My Source for News, Opinion, and the World. » Subscribe to MS NOW: youtube.com/@msnow MS NOW is the go-to destination for domestic and international breaking news, and best-in-class opinion journalism. For more context and news coverage of the most important stories of our day click here: ms.now #kristinoem #DHS #mullin