Democrats need four Senate seats to win control in 2026 midterms as polls show tight races

Oct 19, 2026

Ahead of the November 3, 2026 midterm elections, Democrats require a net gain of four Senate seats to take control from the 53-47 Republican majority. Fueled by low presidential approval ratings for Donald Trump and inflation stemming from the Iran war, polling across key battleground states like Texas, Ohio, Maine, and North Carolina shows Democrats holding leads in critical races. Record political ad spending has surpassed $3.8 billion, with betting markets and forecast models giving Democrats strong odds to win both chambers.

Senate majority battleground overview

▪Democrats need a net gain of four Senate seats in the November 3, 2026 midterm elections to win majority control from Republicans, who currently hold a 53-47 Senate majority.
▪The Fox News Power Rankings identify nine key Senate battleground races, rating six states as true toss-ups: Alaska, Iowa, Maine, Michigan, Ohio, and Texas.

Candidates in Texas, Maine, and Ohio Senate races

▪In Ohio, appointed Republican Senator Jon Husted is defending his seat against former Democratic Senator Sherrod Brown.
▪In Maine, incumbent Republican Senator Susan Collins is running against former Democratic state Senate President Troy Jackson.
▪In Texas, Democratic state Representative James Talarico faces Republican Attorney General Ken Paxton for the Senate seat being vacated by Republican Senator John Cornyn.

Candidates in Alaska, Iowa, and Michigan Senate races

▪In Alaska, incumbent Republican Senator Dan Sullivan faces Democratic challenger and former U.S. Representative Mary Peltola.
▪In Iowa, Republican Representative Ashley Hinson faces Democratic state Representative Josh Turek to fill the seat vacated by retiring Republican Senator Joni Ernst.
▪In Michigan, Democrat Abdul El-Sayed faces Republican former U.S. Representative Mike Rogers for the seat of retiring Democratic Senator Gary Peters.

Poll results in key U.S. Senate races

▪In Ohio, Democrat Sherrod Brown leads Republican Jon Husted 48% to 42% in an October 18, 2026 Bowling Green/YouGov poll.
▪In Maine, Democratic challenger Troy Jackson leads incumbent Republican Susan Collins 49% to 47% in an October 14, 2026 Suffolk University poll.
▪In North Carolina, Democratic former Governor Roy Cooper leads Republican Michael Whatley 54% to 40% in an October 13, 2026 WRAL/WSOC poll.
▪In Texas, Democrat James Talarico leads Republican Ken Paxton 48% to 46% in an October 19, 2026 University of Houston survey.

Nate Silver Senate forecast model

▪Nate Silver's forecast model indicates Democrats are favorites to win Senate control if they secure a 5-6 point margin on the national generic ballot.
▪In Nate Silver's forecast model, Democrats hold a 75% chance to win control of the Senate and a 94% chance to take the House of Representatives as of October 2026.

Betting odds on congressional control

▪William Hill spokesperson Lee Phelps noted speculative betting support on long odds for Republicans to retain both chambers of Congress in the 2026 midterms.
▪U.K. bookmaker William Hill reported 1/16 odds for Democrats winning the House and 1/2 odds for winning the Senate, implying a 94% chance in the House and 66% in the Senate.
▪Bovada midterm betting odds listed a Democratic sweep of both chambers at -145, a Democratic House and Republican Senate split at +175, and a Republican sweep at +550.

Party committee chairs on Senate prospects

▪National Republican Senatorial Committee Chair Tim Scott stated that Republicans maintain political momentum and are well-positioned in key Senate midterm races.
▪Democratic Senatorial Campaign Committee Chair Kirsten Gillibrand stated that Senate Democrats possess multiple paths to flip Republican-held seats and secure the Senate majority.

Campaign spending in Maine and Ohio Senate races

▪Outside groups are projected by AdImpact to spend $246 million for Republicans and $177 million for Democrats in the Ohio Senate race.
▪In the Maine Senate race, Democratic candidate Troy Jackson raised $20.4 million compared to $24 million raised by incumbent Republican Susan Collins through September 30, 2026.

National midterm ad spending and donations

▪Elon Musk has contributed approximately $366 million to support Republican candidates in the 2026 midterm elections, according to campaign finance records.
▪Political ad tracking firm AdImpact reported that a record $3.8 billion had been spent on political advertisements for the 2026 midterms as of October 12, 2026.

Trump approval ratings

▪A September 2026 Reuters/Ipsos poll measured President Donald Trump's performance approval rating at an all-time low of 32%.
▪Donald Trump's net approval rating reached a record low in Silver's polling aggregate, falling to -23.9 on October 9, 2026, before settling at -22.3 with 59.8% disapproval and 37.6% approval.
▪Donald Trump's 38% overall approval rating in the Silver Bulletin aggregate reflects voter dissatisfaction over the Iran war and domestic economic inflation ahead of the 2026 midterms.