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

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

Republicans have retaken control of the US Senate, after flipping seats in West Virginia, Ohio and Montana. The results ...

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

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

Senate Republicans once tried to check the former president’s power. This time, they will be more accommodating.

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

Democratic U.S. Congressman Ruben Gallego was still leading the race for Arizona’s U.S. Senate seat Wednesday evening, but it ...

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

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

Senate Republicans are feeling optimistic they’ll expand their majority to 53 seats next year as Sen. Bob Casey (D) is ...

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