Updated: October 5, 2026
With just 29 days until Election Day, control of the U.S. Senate is genuinely in play — and the latest polling should set off alarm bells for Republicans. Democrats need a net gain of four seats to seize the majority, and a wave of new surveys from the New York Times/Siena College, Fox News, Marist, and Trafalgar shows Democratic candidates leading or tied in nearly every battleground. The GOP’s hard-won momentum this year — including the Trump-backed funding deal — could stall out fast if the gavel flips.
Here are the seven Senate races that will decide the 2026 midterms, the latest polls in each, and what the outcome means for President Trump’s final two years.
1. Texas: James Talarico vs. Ken Paxton
The stunner of the cycle. A New York Times/Siena College poll released October 3 found Democrat James Talarico leading Republican Ken Paxton 51% to 45% among likely voters. A Fox News poll had Talarico up 51–49, and Marist put the Democrat ahead by six. Paxton’s allies are reportedly set to spend roughly $190 million on ads in the final two months, per the Times.
The conservative takeaway is blunt: this race should never have been close. Paxton’s baggage has made him the Democrats’ dream opponent. If Texas falls, there is almost no map left for Republicans to hold the Senate.
2. Alaska: Mary Peltola vs. Dan Sullivan
Democrat Mary Peltola leads incumbent Republican Dan Sullivan 50% to 43% in the Times/Siena survey (Sept. 24–Oct. 1). An AARP poll had Peltola up five, though Quantus showed a 47–47 tie this week and Trafalgar had Sullivan ahead by a point. Sullivan, endorsed by President Trump, holds a war chest topping $25 million.
Peltola is running the classic red-state Democrat playbook: folksy ads and talk of “independence.” Conservatives shouldn’t buy it — her vote could make Chuck Schumer majority leader again. Sullivan has the money to define her; he needs to start now.
3. Ohio: Sherrod Brown vs. Jon Husted
Sherrod Brown is back — and leading. Times/Siena has the former senator ahead of appointed incumbent Jon Husted 49% to 46% among likely voters. Marist showed Brown up by eight in late September, and Suffolk had Brown ahead 47–44.
Brown’s blue-collar populism has always played in Ohio, and Husted is still introducing himself statewide. Republicans can’t take Ohio for granted: this is exactly the kind of race where the Trump base must turn out like it’s 2024.
4. Iowa: Ashley Hinson vs. Turek
Yes, Iowa is a battleground again. Times/Siena found Rep. Ashley Hinson clinging to a one-point lead, 48–47, over Democrat Turek. A Fox News poll had Turek ahead 49–47, while Marist showed the Democrat up by eight. Most ominous for the GOP: 53% of Iowa likely voters told Times/Siena they prefer a candidate who would “be a check on” President Trump.
Iowa has voted red for a decade, but these numbers say complacency is the enemy. Hinson is a strong candidate who needs the party’s full weight behind her in the closing weeks.
5. Maine: Sara Jackson vs. Susan Collins
The ultimate survivor’s race is a dead heat. Trafalgar (Oct. 3) and CBS/YouGov (Oct. 2) both found it tied, an AARP survey had Jackson up 50–47, and one late-September poll gave Collins a two-point edge. A poll reported by The Hill this week showed Jackson narrowly ahead. Maine’s ranked-choice voting adds another layer of unpredictability.
Collins has bucked her party before and lived to tell about it, but this is the toughest fight of her career, with national Democrats pouring millions into Maine. Losing her wouldn’t just cost a seat — it would cost the Senate one of its most effective legislators.
6. Michigan: Abdul El-Sayed vs. Mike Rogers
The open-seat battle for Michigan is tilting blue. Marist (Sept. 29) had Democrat Abdul El-Sayed leading Republican Mike Rogers 51–44, and Cygnal had El-Sayed ahead 45–40. But October polls from Trafalgar and Fox News showed a much tighter race, with El-Sayed up by just one to two points.
Rogers is a quality recruit, but Michigan’s suburbs keep drifting left and the Democratic base is energized. This is the Democrats’ best pickup opportunity — the race Republicans can least afford to lose.
7. New Hampshire: Chris Pappas vs. John Sununu
Former Gov. John Sununu’s comeback bid is stalling. A Trafalgar poll from September 27 showed Democrat Chris Pappas leading 47–41, and the race has barely moved for weeks. New Hampshire was supposed to be a prime GOP pickup with a top-tier recruit.
For conservatives, this one stings. If Republicans can’t win New Hampshire with John Sununu, the Senate math gets very ugly, very fast.
What It Means for Trump’s Final Two Years
Add it up: Democrats are leading or tied in all seven races that matter most, one month before Election Day. If these numbers hold, Chuck Schumer returns as majority leader — ending judicial confirmations, the legislative agenda, and ushering in two years of investigations and impeachment theater.
The good news: polls are not votes, and October surprises are real. Even deep-blue New York is suddenly competitive, with Bruce Blakeman narrowing Kathy Hochul’s lead to single digits — proof that no race is unwinnable with maximum effort. The next 29 days will decide whether Trump’s final two years mean achievement or gridlock. Conservatives, consider yourselves warned.
