North Carolina’s Senate seat opened on June 29, 2025, when Sen. Thom Tillis (R) announced he would not seek a third term, a day after President Trump said he was considering backing a primary challenger over Tillis’s vote against advancing the One Big Beautiful Bill Act. The two parties’ nominees were set on March 3, 2026: former Gov. Roy Cooper (D) and former Republican National Committee chair Michael Whatley (R).
On October 6, Cook Political Report moved the race from Lean Democrat to Likely Democrat. That makes it the most favorable Republican-held seat for Democrats on Cook’s board, and an important piece of the Senate math. Here is what to know.
- Open seat: Sen. Thom Tillis (R) announced his retirement on June 29, 2025.
- Roy Cooper (D) was governor from 2017 to 2025; Michael Whatley (R) chaired the RNC in 2024–2025 and has Trump’s endorsement.
- Cook Political Report moved the race to Likely D on Oct. 6, 2026. Inside Elections rated it Tilt D as of Sept. 17.
- Cooper led every September public poll listed in published polling roundups, by margins from 5 to 15 points.
- Libertarian Shannon Bray and Green Party nominee Michael Dublin are also on the ballot.
The candidates
Roy Cooper (D)
Former governorTwo-term governor (2017–2025) and, before that, longtime state attorney general. He announced his Senate run on July 28, 2025, and won the March 3 primary with 92.0% of the vote.
Michael Whatley (R)
Former RNC chairFormer chair of the North Carolina Republican Party and of the Republican National Committee (2024–2025). Endorsed by President Trump, he launched his campaign on July 31, 2025, and won the primary with 64.6%, ahead of author Don Brown at 15.6%.
Two minor-party nominees are also on the ballot: Shannon Bray (Libertarian), a cybersecurity professional who has run before, and Michael Dublin (Green), a teacher and the party’s 2024 nominee for the 2nd Congressional District.
How the race ratings have moved
| Forecaster | Rating | As of |
|---|---|---|
| Cook Political Report | Likely D | Oct. 6, 2026 (from Lean D) |
| Sabato’s Crystal Ball | Leans D | Sept. 22, 2026 |
| Inside Elections | Tilt D | Sept. 17, 2026 |
Cook’s October 6 update, by Jessica Taylor, moved three Senate races toward Democrats at once: Kansas to Toss-Up, New Hampshire to Lean D and North Carolina to Likely D. Newsweek’s report on the shift noted that Whatley trailed in a series of polls, that Trump had voiced concerns about him, and that the Senate Leadership Fund had paused advertising in the race. Trump held a rally for Whatley in Gastonia on September 16.
What the polls show
| Pollster | Dates | Cooper | Whatley |
|---|---|---|---|
| YouGov (RV) | Sept. 15–18 | 52 | 41 |
| Opinion Diagnostics | Sept. 17–20 | 51 | 41 |
| Quantus Insights (R) | Sept. 21–22 | 48 | 43 |
| Harper Polling (R) | Sept. 13–15 | 49 | 34 |
Polls are snapshots, not forecasts. North Carolina has produced several close statewide results in recent cycles, and Trump carried the state in 2024. Democrats have not won a U.S. Senate race in North Carolina since 2008. A consistent lead in September is meaningful, but it is not a result.
Why the seat matters for Senate control
Republicans hold 53 seats. Democrats need a net gain of four for a majority, since Vice President JD Vance breaks ties. On Cook’s current board, North Carolina is the only Republican-held seat rated anything other than Toss-Up or Republican-leaning, which is why it appears in nearly every Democratic path to 51. For Republicans, holding it would sharply narrow Democrats’ options. We lay out the full arithmetic in Five Weeks Out: The Seven Senate Toss-Ups and the wider field in Beyond the Toss-Ups.
Debates
As of our last check, no Cooper–Whatley debate had been announced. Our Senate debate tracker will list any that are added.
Voting in North Carolina: key rules
- Early voting runs October 15–31, and eligible residents can register and vote at the same time at an early voting site.
- Mail ballots must be received by 7:30 p.m. on Election Day, according to NCSL. North Carolina allows voters to fix certain ballot defects until noon on the fifth business day after the election.
- Also on the ballot: a constitutional amendment requiring photo ID for all voters, including mail voters. See our 2026 ballot measures overview.
- If it is close: in a statewide race, a candidate may demand a recount if the margin is no more than 0.5% of the votes cast or 10,000 votes, whichever is less, under state law.
Frequently asked questions
Who is running for Senate in North Carolina in 2026?
Former Gov. Roy Cooper (D), former RNC chair Michael Whatley (R), Libertarian Shannon Bray and Green Party nominee Michael Dublin. The seat is open because Sen. Thom Tillis (R) is retiring.
What is the Cook Political Report rating for the North Carolina Senate race?
Cook moved the race from Lean Democrat to Likely Democrat on Oct. 6, 2026.
Why is Thom Tillis not running again?
Tillis announced on June 29, 2025, that he would not seek re-election, a day after President Trump said he was considering backing a primary challenger following Tillis’s vote against advancing the One Big Beautiful Bill Act.
When is early voting in North Carolina?
Early voting runs Oct. 15–31, 2026. Same-day registration is available at early voting sites but not on Election Day.
Can the North Carolina Senate race go to a recount?
Yes. For a statewide race, a candidate may demand a recount if the margin is no more than 0.5% of votes cast or 10,000 votes, whichever is less. The demand is due by noon on the second business day after the county canvass.
North Carolina has moved from the center of the Senate map toward the Democratic side of it, by Cook’s rating and by every September poll listed here. The state’s history of close finishes is the reason to keep watching anyway.
Sources
- Cook Political Report: A Senate majority is squarely in Democrats’ sights as Kansas moves to Toss Up; two other races shift left (Oct. 6, 2026)
- Cook Political Report: 2026 Senate race ratings
- NC Newsline: Roy Cooper, Michael Whatley secure U.S. Senate nominations (Mar. 3, 2026)
- North Carolina General Statutes § 163-182.7: Ordering recounts
- North Carolina State Board of Elections: Upcoming election