DHS Secretary Kristi Noem out, Trump says

Department of Homeland Security Secretary Kristi Noem is leaving the department and he will nominate Sen. Markwayne Mullin (R-Okla.) as her replacement, President Trump said Thursday. Why it matters: Noem's exit leaves Trump's mass deportation agenda without its most prominent face amid a public backlash. What he's saying: Trump said Noem will be "moving to be Special Envoy for The Shield of the Americas, our new Security Initiative in the Western Hemisphere we are announcing on Saturday in Do