12 key races that will determine who controls the Senate

Key Points:

• The 2026 Senate races are shaping up as critical contests, with Republicans defending 22 seats and Democrats needing to net four to gain control of the chamber; several races are rated as toss-ups or leaning toward one party by political analysts.
• Key battleground states include Maine, Michigan, Ohio, Alaska, Texas, Iowa, Georgia, New Hampshire, North Carolina, Minnesota, Kansas, and Nebraska, featuring a mix of incumbents, former officials, and newcomers in competitive matchups.
• Notable races involve Maine's Susan Collins versus Troy Jackson, Michigan's Abdul El-Sayed versus Mike Rogers, Ohio's Jon Husted versus Sherrod Brown, and Texas's Ken Paxton versus James Talarico, all rated as toss-ups by major political reports.
• Some races feature unique dynamics, such as Alaska's ranked-choice voting with two candidates named Dan Sullivan, Nebraska's independent candidate Dan Osborn challenging incumbent Pete Ricketts, and Georgia's Jon Ossoff facing GOP nominee Mike Collins amid controversies.
• Overall, the midterm elections will test the impact of national issues like the unpopular war with Iran, affordability concerns, and President Trump's influence, with control of the Senate hanging on several closely watched contests.