The Senate Homeland Security and Governmental Affairs Committee advanced Sen. Markwayne Mullin's nomination to lead the Department of Homeland Security.

Senators grilled Sen. Markwayne Mullin during a hearing over his confirmation to become the next Secretary of Homeland Security. Congress remains in a standoff over DHS funding, leading to massive TSA lines at airports across the country.

The top Republican on the Senate committee considering Sen. Markwayne Mullin’s nomination to run the Department of Homeland Security criticized his “machismo” at the confirmation hearing on March 18.

A look at key moments as Markwayne Mullin appears before the Senate for his Homeland Security confirmation hearing.

The Republican chairman overseeing hearings on Senator Markwayne Mullin’s nomination to lead the Department of Homeland Security blasted the Oklahoma Republican for “anger issues,” arguing they disqualified him from leading an agency enmeshed in controversy over aggressive tactics.

Senate Homeland Security Chairman Rand Paul criticized Senator Markwayne Mullin during his confirmation hearing, calling him a "man with anger issues."

A key Senate panel advanced Republican Sen. Markwayne Mullin's nomination to lead DHS, putting him on a glide path to confirmation.

Sen. Markwayne Mullin, President Donald Trump’s nominee to lead the Department of Homeland Security, faced fellow senators on Wednesday at a confirmation hearing.