Former Arizona Sen. Vince Leach lobbied to create a GOP-leaning district for himself, but now it could give Democrats a share ...

Senate Republicans could have as large as a 54-seat majority after President-elect Donald Trump's decisive performance at the ...

The temperature is rising in the battle to lead Senate Republicans, with Sens. John Thune (S.D.) and John Cornyn (Texas) ...

WASHINGTON – Republicans have won control of the Senate, a major boost for President-elect Donald Trump to enact his agenda, ...

Republicans flipped the Senate with projected wins in a number of key races, cementing their majority in the upper chamber.

Democrat Ruben Gallego's lead over Republican Kari Lake remained narrow, but steady in counting the day after the election.

In Donald Trump’s first presidential term, Senate Republicans at times served as a frustrating ... with Trump turned toxic ...

Control of the U.S. House of Representatives still hangs in the balance after Republicans won the Senate early Wednesday.

Jon Tester's margins in Montana's populous counties and ran up his lead in the state's more rural regions ... race has been ...

Republicans stood a chance of widening their Senate majority further, as their candidates were leading Democratic incumbents ...

As of Wednesday afternoon, McCormick had a roughly 31,000-vote lead, which has been dwindling ... McCormick, 59, is making ...

Republicans are also projected to win in Montana, the third red-state seat held by Democrats. There, Republican Tim Sheehy ...