The provided news items focus on President Donald Trump’s plan to nominate Oklahoma Sen. Markwayne Mullin to lead the Department of Homeland Security, which would require Mullin to resign his Senate seat. Oklahoma Gov. Kevin Stitt would appoint a temporary replacement, who would be barred from running for the full term, with the seat then contested in an upcoming election. Potential Republican contenders mentioned include U.S. Reps. Kevin Hern and Stephanie Bice and former Oklahoma House Speaker T.W. Shannon.