As polls close across the United States on Wednesday, the 2026 midterm elections are delivering a string of high-stakes Senate contests that could reshape the balance of power in Washington. Democrats need 51 seats to claim the Senate, while Republicans require just 50, given Vice President JD Vance holds the tie-breaking vote. Here is where the most closely watched races stand.
The Headline Races: Upsets, Surprises and Big Names
The race drawing the most national attention is in Michigan, where Abdul El-Sayed, a doctor, unionist and Muslim candidate, is locked in a tight contest against Republican Mike Rogers for the Senate seat being vacated by Democrat Gary Peters. The 2026 United States Senate election in Michigan has become one of the defining contests of this cycle in a critical swing state.
In what is shaping up as one of the night's biggest upsets, South Carolina Republican Darline Graham, sister of the late senator Lindsey Graham, has lost to Democrat Annie Andrews in a state widely considered safe Republican territory. The result is a significant blow to the GOP in the South.
Georgia, by contrast, delivered a smoother night for Democrats. Incumbent Jon Ossoff comfortably won re-election against Republican Mike Collins, and is already being discussed as a potential White House contender for 2028.
Money, Crypto and Contested Seats in the Midwest and South
Ohio has attracted enormous outside spending, with the crypto sector pouring $US68 million into defeating Democratic candidate Sherrod Brown, according to ad-tracking firm AdImpact. Brown, a former senator who chaired the Senate banking committee from 2021 to 2024 and was a vocal critic of cryptocurrency, faces Republican incumbent Jon Husted in one of the most expensive races of the cycle.
In Texas, Democrat James Talarico is attempting to become the first Democrat elected to the US Senate from that state since 1988, running on an anti-corruption platform against Republican Ken Paxton. Meanwhile, in Kansas, popular pastor Adam Hamilton is chasing a historic result: a Democrat has not won a Kansas Senate seat in 94 years, and Hamilton is pushing to end that streak against Republican Roger Marshall.
Tight Contests in Red and Swing States
Maine Republican incumbent Susan Collins, historically known for outperforming poor polling numbers, faces one of her sternest tests yet from Democrat Troy Jackson. Collins carries a poor net approval rating heading into this contest despite her long record of surviving difficult electoral environments.
Iowa's race between Republican congresswoman Ashley Hinson and Democratic state legislator Josh Turek is being watched as a barometer of former President Donald Trump's ongoing influence, after Trump publicly urged voters to treat the midterms as a referendum on his legacy despite his weakened approval ratings.
In Alaska, surging costs for heating fuel, electricity and groceries are front of mind for voters. Democrat Mary Peltola, who has highlighted the state's healthcare cost burden, faces Republican senator Dan Sullivan and an independent candidate who shares a near-identical name, retired teacher Daniel J. Sullivan Jr, adding an unusual wrinkle to the contest.
Ohio, Florida and a Race Defined by Bitter Attacks
Ohio's race has not only been defined by crypto money. Republican Vivek Ramaswamy was forced to pull a campaign attack advertisement targeting Democrat Amy Acton, after his team tracked down Acton's estranged mother, who made damaging personal claims about her daughter. The move drew widespread criticism and focused attention on the race's unusually hostile tone.
In Florida, Republican Byron Donalds and Democrat David Jolly are contesting what has historically been strong Republican territory. The result is expected to offer early clues about Florida's political direction ahead of the 2028 presidential cycle.
With results still coming in across multiple time zones, several of these contests remain too close to call. The final outcome of the Senate majority could hinge on the results in Michigan, Ohio, Maine and the two long-shot Democratic bids in Texas and Kansas.
