Voters in Montana, West Virginia, Ohio, and Pennsylvania voted for Republicans to take over seats held by Democrats, giving ...

The Michigan Senate race is between Democrat Elissa Slotkin and Republican Mike Rogers. The contest is for an open seat after Sen. Debbie Stabenow, a Democrat, opted not to run for re-election.

In the Washington Senate race, Democrat Maria Cantwell has won, NBC News projects. The expected vote is the total number of votes that are expected in a given race once all votes are counted.