In the fight for control of the US Senate, the majority may come down to which factor carries more weight: the map or the environment.

As the March 3 primary race for a Texas seat in the U.S. Senate approaches, FOX Local has put together a breakdown of each Republican candidate hoping to take on a Democratic challenger in November.

Senate Republicans face tough midterm battles defending their 53-47 majority, with Maine's Collins and seats in North Carolina, Ohio most vulnerable.

Follow 2026 primary election calendar dates ahead of midterms. Learn more as this year's primary results are tabulated and winners are announced for every state.

Kalshi prediction markets show rising Democratic chances in key 2026 Senate races, though Republicans remain favored overall.

Maine Republican Sen. Susan Collins is officially running for re-election, setting up what may be one of the closest watched races in the country.

A renewed push by President Donald Trump to tighten federal voter registration rules is drawing sharp opposition from Minnesota Democrats. Republicans argue the proposed

Special elections will take place across the U.S. to fill key seats in the House, where Republicans hold a slim majority.