Mullin highlighted the resilience of DHS staff and promised to fight alongside them while fulfilling duties as DHS chief.

Okla., was confirmed to replace former DHS Secretary Kristi Noem on Monday night as the department remains shut down. With ...

The Oklahoma Republican comes to the helm in the midst of a shutdown that has left some 100,000 of the department's more than ...

In our news wrap Tuesday, Markwayne Mullin took office as the new head of the Department of Homeland Security, some ...

Markwayne Mullin was sworn in on Tuesday as the new Secretary of the Department of Homeland Security, where he’ll inherit an ...

The Oklahoma senator will assume his new role at the end of the month after being confirmed by his colleagues in a 54-45 vote ...

President Donald Trump has fired his embattled Homeland Security Secretary Kristi Noem. Trump said he was nominating Oklahoma ...

Oklahoma lawmakers reacted after U.S. Sen. Markwayne Mullin was confirmed Monday as the next secretary of Homeland Security. ...

The US senator will now oversee the embattled department after a series of immigration enforcement blunders.

Republican Sen. Markwayne Mullin testified before a group of senators Wednesday, pledging to set aside partisanship and to ...

The deal, which the Senate approved unanimously early in the morning without a roll call, would fund much of the Department ...