(The Center Square) – Oklahoma voters head to the polls Tuesday to take the first step toward filling the U.S. Senate seat vacated by newly installed Homeland Security Secretary Markwayne Mullin. Both parties will pick their nominees, with U.S. Rep. Kevin Hern, R-Okla., leading the Republican field in polling, before the two winners meet in the Nov. 3 general election.

(The Center Square) – Four candidates are vying for Tommy Tuberville’s open U.S. Senate seat in Tuesday’s Democratic and Republican primary runoff elections in Alabama. The winners of the two races will face each other in the general election on Nov. 3, in which voters will decide who becomes the next U.S. senator from Alabama.