Mike Collins cruises past Kemp-backed rival in Georgia Senate runoff

Rep. Mike Collins swept the Georgia Republican Senate runoff on Tuesday, defeating former University of Tennessee football coach Derek Dooley by a comfortable margin and clinching the GOP nomination to challenge incumbent Democratic Sen. Jon Ossoff in November. NBC News and Decision Desk HQ both projected Collins the winner barely an hour after polls closed, with less than 45 percent of the vote counted, a signal of just how decisive the outcome was.

The race had been framed as a proxy fight between President Donald Trump and Georgia Gov. Brian Kemp, and the scoreboard was unambiguous. Collins, who owns a trucking company and represents Georgia’s 10th congressional district, pulled roughly 55 percent of the vote to Dooley’s 45 percent, Just The News reported. Kemp had actively campaigned for Dooley. Trump endorsed Collins days before the vote.

The result sets up one of the most consequential Senate contests of the 2026 midterms. Republicans hold a 53, 47 majority, and Georgia is widely seen as a top pickup opportunity, or a costly missed chance if the party nominates poorly.

Trump’s late endorsement and its weight

Trump waited until what Breitbart News described as “the final hour” to put his thumb on the scale. The endorsement landed on Truth Social over the weekend, after early voting had already concluded, National Review noted. That timing raised questions about whether it would matter. It did.

Trump called Collins “MAGA Mike Collins” and praised him as “a Highly Respected Congressman who has been with me from the very beginning.” On Truth Social, the president also described Collins as “a WARRIOR and WINNER,” the New York Post reported.

His treatment of Dooley was notably cooler. Trump said:

“I don’t know Derek Dooley, and neither does anyone else, but he seems like a nice person.”

He then went further, claiming Dooley had “lived outside of Georgia for most of his life, didn’t vote in 2020 or 2016, and said that I lost Georgia in 2020.” Those claims came directly from Trump and were not independently verified in election filings or reporting.

Collins, for his part, showed no concern about the late timing. In his victory speech, he credited Trump’s instincts. As Fox News reported, Collins told supporters:

“I don’t think President Trump ever is too late. He has this impeccable ability of putting his thumb right on the scale at the right time.”

That confidence was backed by the numbers. Collins had already led the May 19 primary with 40.5 percent to Dooley’s 30.2 percent. Rep. Buddy Carter finished third at 25.1 percent, and two other candidates failed to crack 4 percent. No one cleared the 50-percent threshold Georgia law requires, forcing the runoff.

Kemp’s losing bet

For Gov. Kemp, the outcome was a clear setback. He had thrown his political weight behind Dooley, a first-time candidate and lawyer who leaned on establishment advertising campaigns as polling showed him overtaking Carter closer to election day. But Dooley never closed the gap with Collins, and the Kemp brand, formidable in Georgia general elections, could not overcome Trump’s gravitational pull in a Republican primary.

The dynamic mirrors a pattern playing out across multiple states. Trump’s endorsement of Collins was itself a direct challenge to Kemp’s influence, and the governor’s candidate lost by double digits.

Trump had already given an early endorsement in the Georgia gubernatorial race to Lt. Gov. Burt Jones, who faced billionaire Rick Jackson in a separate runoff on the same Tuesday. Secretary of State Brad Raffensperger and Attorney General Chris Carr had both been eliminated in the gubernatorial primary.

The willingness of Republican primary voters to follow Trump over their sitting governor tells a story about where power sits inside the Georgia GOP heading into November. Kemp remains popular statewide, but his sway over the party’s base has limits when Trump is on the other side of the ledger.

The general election ahead

Collins now faces Ossoff, the first-term Democrat who won his seat in the January 2021 runoff. Republicans view the race as one of their strongest pickup opportunities in the Senate. Ossoff has been described as one of the most vulnerable Democrats up for reelection, a characterization attributed to Politico.

RealClear Polling averages heading into Tuesday showed Collins trailing Ossoff by 2.8 points in a projected general election matchup, far closer than the 6.7-point gap Dooley faced against the same opponent. That spread was part of the electability argument Collins’ backers made throughout the primary.

The Cook Political Report rates the seat “Leans Democrat,” National Review noted. But in a midterm cycle with Republicans defending a slim Senate majority, Georgia represents exactly the kind of competitive battleground where candidate quality and grassroots energy can tip the balance.

Collins wasted no time pivoting. In his victory remarks, he declared:

“It’s time to get to work, defeat Jon Ossoff, and take this seat back for the people of this state.”

Newsmax reported that Republicans view the Georgia seat as central to their strategy for holding Senate control, calling it one of their top pickup targets in the midterms.

The stakes extend beyond Georgia. Senate Republicans have spent the first half of the Trump administration defending their majority against Democratic procedural maneuvers, from efforts to curb Trump’s military authority on Iran to repeated floor fights over executive power. Every seat matters when the margin is six votes.

What Collins brings, and what he faces

Collins enters the general election as a sitting congressman with a voting record, a business background in trucking, and a Trump endorsement that carries real currency with the Republican base. He ran well ahead of the field in both the primary and the runoff, suggesting broad support among Georgia Republicans rather than a narrow factional win.

Dooley, by contrast, struggled with the residency and engagement questions Trump raised. Whether or not those claims were fully documented, they stuck. A first-time candidate with roots at the University of Tennessee and no record of voting in two presidential cycles was always going to face headwinds in a state where Republican primary voters prize loyalty and participation.

Trump’s influence in GOP primaries continues to be the dominant storyline of the 2026 cycle. In Texas, the president backed Ken Paxton over John Cornyn in another Senate runoff that tested the boundaries of MAGA loyalty against establishment credentials. Georgia now joins that list of contests where Trump’s word proved decisive, even when delivered at the last possible moment.

Not every Trump endorsement lands perfectly. In Iowa, a farmer named Zach Lahn toppled the Trump-endorsed candidate in a gubernatorial primary. But in Georgia’s Senate race, the pattern held. Trump picked his candidate, Kemp picked his, and Republican voters made the call.

November’s test

The real work starts now. Collins has to close a 2.8-point polling deficit against an incumbent senator with statewide name recognition and a fundraising apparatus that has been building for years. Ossoff won in 2021 under unusual circumstances, a double runoff, a divided Republican electorate, and the aftermath of January 6. The political landscape in 2026 looks different.

Georgia remains a genuine swing state, and Senate races there have a way of going down to the wire. Collins will need Trump’s base, Kemp’s general-election voters, and the kind of turnout that only a unified party can generate.

Republican primary voters made their choice clearly and early on Tuesday night. Whether the rest of Georgia follows in November will say as much about the state of the Democratic Party as it does about Collins himself.

Winning a primary is the easy part. Flipping a Senate seat in a purple state, that’s where the real accountability begins.