New Secretary of Homeland Security Markwayne Mullin

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Markwayne Mullin has been sworn in as the new Secretary of Homeland Security, replacing Kristi Noem, who was fired this month after a succession of controversies.

Mullin, a Republican senator from Oklahoma, officially became the new cabinet secretary in charge of enforcing Donald Trump’s flagship immigration policy in a ceremony at the White House.

He was sworn in by the attorney general, Pam Bondi.

Janet Napolitano, the Former Secretary of Department of Homeland Security, joined “Arizona Horizon” to discuss this transition and what it means for the department.

Janet Napolitano, Former Secretary of Department of Homeland Security

Fountain Hills with text reading: Food Festival Saturday, April 11, 2026, Fountain Hills, Arizona
April 11

Join us for the We-Ko-Pa ‘Check, Please! Arizona’ Food Festival

Dr. Maurice Crandall
aired March 27

Who are Arizona’s founding fathers?

The Arizona PBS logo and text reading: Your Arizona Connection Starts Here

Celebrating Arizona PBS’ 65th Anniversary

The cast of Downton Abbey in Character
aired March 8

Stream ‘Downton Abbey’ with Arizona PBS Passport

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