Live updates: Mullin, Paul tussle at start of DHS questioning; Iran operation dominates Gabbard hearing

In a Senate confirmation hearing on Wednesday, Sen. Markwayne Mullin (R-Okla.) tried to lay out how he would lead the Department of Homeland Security (DHS). But the hearing’s chair, Sen. Rand Paul (R-Ky.), got the meeting off to a contentious start, confronting Mullin about his past comments calling him a snake, and saying Mullin has…