Markwayne Mullin was elected to the Senate in 2022 after serving 10 years in the US House of Representatives.

Donald Trump has nominated the Oklahoma senator Markwayne Mullin to lead the Department of Homeland Security after the US President sacked current DHS chief Kristi Noem on Thursday. The Trump...

March 5 (UPI) -- President Donald Trump removed Secretary of the Department of Homeland Security Kristi Noem on Thursday and said he would nominate Sen. Markwayne Mullin, R-Okla., to replace her after she was aggressively grilled by a Senate and House committees.

President Trump announced Thursday that he is firing Homeland Security Secretary Kristi Noem and nominating Sen. Markwayne Mullin, Oklahoma Republican, to replace her, capping a turbulent week that sa

President Trump announced Thursday that he is firing Homeland Security Secretary Kristi Noem and nominating Sen. Markwayne Mullin, Oklahoma Republican, to replace her, capping a turbulent week that sa

President Trump said Thursday he is installing Sen. Markwayne Mullin as the new head of the Department of Homeland Security and sidelining Secretary Kristi Noem, ending her mixed tenure and marking th

President Trump said Thursday he is installing Sen. Markwayne Mullin as the new head of Homeland Security and sidelining Secretary Kristi Noem, marking the first ouster from his second-term Cabinet.