Trump taps Mullin to run DHS as Noem steps down amid scrutiny

President Trump announced that Kristi Noem will depart as DHS secretary, with Senator Markwayne Mullin named to succeed her pending Senate approval; Noem will shift to a new role as a special envoy while Mullin faces confirmation to lead DHS amid ongoing controversy over DHS spending on a $220 million immigration ad campaign and the Minneapolis crackdown, which drew bipartisan criticism and raised questions about oversight and governance.