5 things to know about Trump’s DHS pick Markwayne Mullin

President Donald Trump announced his nomination of Sen. Markwayne Mullin, R-Okla., to serve as Secretary of Homeland Security effective March 31, replacing Kristi Noem, who is being reassigned to the role of special envoy for The Shield of the Americas. Here are five things to know about Sen. Markwayne Mullin, President Donald Trump’s pick to lead the Department of Homeland Security.