The Senate confirms Markwayne Mullin as the next head of the Department of Homeland Security, following a 54-45 vote. The Senate is still deadlocked on DHS funding, and Mullin's confirmation is unlikely to impress Democrats who believe their opposition to funding the department is about policy, not personnel. The National Transportation Safety Board will investigate air traffic controller staffing at LaGuardia as part of its probe, including their communication training. The NTSB has also requested an FAA replay of the events to potentially determine if controllers knew in real time where the aircraft and the vehicle were before the collision. Pakistan is becoming a new go-between between the U.S. and Iran, with a potential meeting between the two countries expected soon.