The North Carolina Senate race 2026 is shaping up to be one of the most expensive contests of the midterm cycle. An open seat in a purple state has drawn two heavyweight candidates and a torrent of cash. This happened after Sen. Thom Tillis had a public break with President Trump and announced he wouldn’t see reelection.

Here’s who’s running, who’s writing checks, and what’s at stake.

Thom Tillis 2026: Why the Incumbent Walked Away

Tillis, a Republican who served more than 10 years in the Senate, announced in late June 2025 that he would not run again. Tillis voted against Trump’s sweeping tax and spending package, the so-called "Big, Beautiful Bill," over concerns about Medicaid cuts affecting North Carolinians. Trump attacked Tillis on Truth Social and threatened to recruit primary challengers.

In his retirement announcement, Tillis said that "leaders who are willing to embrace bipartisanship, compromise, and demonstrate independent thinking are becoming an endangered species."

His departure turned what might have been a contested primary into a wide-open general election — and instantly elevated the seat to one of the top pickup targets for Democrats nationally.

The NC Senate Candidates 2026: A Party Insider vs. a Former Governor

Michael Whatley (Republican)

Michael Whatley is the former chairman of the Republican National Committee and former chair of the North Carolina Republican Party. Raised in Blowing Rock, NC, he holds degrees from UNC Charlotte, Wake Forest, and Notre Dame. His career has been built in Republican staff and governance roles — including a stint as chief of staff to Sen. Elizabeth Dole and a senior position in the George W. Bush administration.

Whatley also carries Trump’s endorsement and is running as a full-throated MAGA ally. His central challenge, as the Washington Post has noted: he has never appeared on a ballot before. Early Emerson College polling found nearly two-thirds of voters either didn’t know who he was or were unsure about him.

Roy Cooper (Democrat)

Roy Cooper is the former two-term governor of North Carolina who has, according to the NCDP, never lost a race. Born in Nash County, he served in the state legislature, rose to Senate Majority Leader, then served four terms as attorney general before winning the governorship in 2016 — the same year Trump carried the state. He won reelection in 2020, again outperforming the Democratic presidential ticket.

Cooper is running on his record of Medicaid expansion, economic growth, and bipartisan governance.

The Money: Cooper’s Commanding Fundraising Lead in the North Carolina Senate Election

The financial picture is lopsided.

According to FEC filings, Cooper has reported approximately $21.1 million in total receipts, with $9.26 million from individual contributions and roughly $553,000 from PACs. He has spent about $6.8 million, leaving an estimated $14.2 million cash on hand.

Whatley’s FEC filings show approximately $3.5 million in total contributions through his campaign committee — $2.88 million from individuals and about $561,000 from PACs. He has already spent $3.75 million, more than he has raised directly, leaving minimal cash reserves. However, as Punchbowl News reported, a joint fundraising committee for Whatley raised an additional $4.5 million in the third quarter of 2025 alone.

Politico reported that Cooper broke fundraising records early in the race. NC Newsline confirmed he "dramatically outfundraised his competitors" based on year-end filings.

The bottom line: Cooper is self-sustaining through direct fundraising. The Michael Whatley Senate campaign will likely depend more heavily on party infrastructure and outside groups to remain competitive. The race is projected to see roughly $500 million in total spending, which would make it the most expensive Senate race in the country.

Who’s Giving to the Incumbent — and What It Tells Us

Even though Tillis is not running again, his campaign continued receiving PAC contributions well into 2025 and tracks closely with his committee assignments.
Some examples include:

  • Energy: ConocoPhillips Spirit PAC ($5,000), Dominion Energy PAC ($4,500), The Williams Companies PAC ($2,500), Energy Marketers of America PAC ($2,500)
  • Healthcare: American Academy of Dermatology (SKINPAC) ($5,000), Fresenius Medical Care PAC ($5,000), American Academy of Ophthalmology (OPHTHPAC) ($2,500), Smith & Nephew PAC ($2,000)
  • Finance: LPL Financial PAC ($1,000), H&R Block PAC ($750)
  • Private Prisons: CoreCivic PAC ($2,500)

Tillis chairs the Banking Committee’s Financial Institutions and Consumer Protection Subcommittee and the Judiciary Committee’s Intellectual Property Subcommittee, and sits on the Finance and Veterans’ Affairs committees. The pattern suggests PAC dollars flowing toward a senator with direct jurisdiction over the donors’ regulatory interests — a standard feature of Washington fundraising, but one worth watching as the 2026 Senate race candidates position themselves to inherit those same committee portfolios.

Tillis’s individual donor base, by contrast, skews heavily toward small-dollar contributions. Of 20,988 individual contribution records for the 2026 cycle, the vast majority are under $100, with many recurring monthly donations in the $10–$15 range.

The Battlefield: What North Carolina Voters Want

North Carolina’s 11.2 million residents make it the ninth most populous state, and its population grew 7.2 percent since the 2020 Census — the fastest rate in the nation between 2024 and 2025.

The electorate is defined by a sharp urban-rural divide. Wake County (Raleigh) and Mecklenburg County (Charlotte) are deep-blue anchors, while rural counties — 42 of which lost population between 2010 and 2020 — remain strongly Republican. The suburban ring counties around the Research Triangle and Charlotte are where elections are decided.

Voter registration tells the story of a state in flux.

As of late 2025, unaffiliated voters represent about 38 percent of the electorate — the largest single bloc. Republicans overtook Democrats in registration for the first time in January 2026, but the two parties sit at virtual parity, each around 30.6 percent.

Healthcare looms as a defining issue. North Carolina’s uninsured rate sits at roughly 10.3 percent, and 1.4 million residents are enrolled in Medicaid — the very program at the center of Tillis’s break with Trump. Hurricane Helene recovery in western North Carolina and the state’s large military population (Fort Liberty, Camp Lejeune) add additional layers of local concern.

What the Polls Say About the 2026 Senate Race Candidates

Every public poll released so far shows Cooper leading Whatley, per 270toWin and RealClearPolling:

Despite those numbers, the race is rated a toss-up by forecasters. Democrats have not won a U.S. Senate race in North Carolina since Kay Hagan in 2008, and both of Tillis’s wins came by fewer than two points.

The Stakes

A Cooper victory would represent a Democratic pickup in a state that has voted Republican in seven of the last eight presidential elections — and could threaten the GOP’s Senate majority in a cycle where Republicans are already defending more seats. For Whatley, the Trump endorsement is both an asset with the base and a potential liability with the suburban swing voters who will decide the race.