Mullin takes Senate grilling, makes case for top job at DHS

Mullin makes his case as a steady hand for DHS but faces Senate pushback over his temperament

Markwayne Mullin, the White House pick for homeland security secretary, made a case to fellow senators Wednesday that he would be a steady hand for a department roiled by controversy under Kristi Noem, but signaled he would follow President Donald Trump's hard-line immigration priorities and pushed back on concerns over his temperament for the Cabinet post.