Barry Moore Favored at 68% to Win Alabama GOP Senate Primary

A Marshall-Aligned PAC Poll Just Scrambled the Alabama Senate Race With 12 Days to Go

A poll commissioned by a PAC supporting Attorney General Steve Marshall landed in the Alabama Republican Senate primary like a grenade. The Tarrance Group survey found Barry Moore at just 28%, with Marshall at 27% and former Navy SEAL Jared Hudson at 24%, according to Yellowhammer News. Thirty-nine percent of likely Republican primary voters remain undecided with the May 19 vote now 12 days away.

The poll's provenance matters. Opposition-funded surveys carry inherent bias toward the funder's preferred narrative, and a near-tie is precisely the story a Marshall-aligned PAC wants told. But the market doesn't care about intent. It cares about information asymmetry, and this poll introduced enough doubt to trigger a 10-percentage-point decline in Moore's implied probability across both Kalshi and Polymarket. Moore now trades at 68% on Polymarket and 67% on Kalshi, down from 78% just three days ago.

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The timing is textbook. Late-stage PAC polls in primaries serve a dual function: they reshape media coverage and they give undecided voters permission to consider alternatives. With nearly four in ten voters still uncommitted, the persuadable universe in this race is enormous. Moore's camp had been running out the clock. That clock just got louder.

Barry Moore's $750K Fundraising Edge and Endorsement Stack Made Him Look Uncatchable

Before this poll dropped, Moore's position looked almost unassailable. His campaign raised nearly $750,000 in the first quarter of 2026, including substantial transfers from Congressional Republican leadership, while Marshall brought in just $180,000, a more-than-4-to-1 disadvantage, as Alabama Political Reporter documented. In a state-level primary where paid media and ground game determine outcomes, that gap should be decisive.

The endorsement stack reinforced the fundraising picture. Senate Majority Leader John Thune and NRSC Chairman Tim Scott both backed Moore, according to Alabama Daily News. Those names signal to donors, activists, and local officials that the Washington establishment considers Moore its candidate. For a sitting U.S. Representative from Alabama's 2nd District, this is the full institutional toolkit deployed in a compressed primary timeline.

A January Peak Insights poll had Moore at 33% with Marshall at 18%. A March Remington Research poll showed Moore at 22% and Marshall at 16%. The prior market price of 78% reflected a candidate with money, endorsements, name recognition, and a consistent polling lead. It priced in a comfortable win.

Why One Poll Moved Barry Moore's Odds 10 Points, and Why Primary Markets Are Structurally Fragile

The structural reason a single opposition poll can erase 10 percentage points of market confidence: low-turnout primaries are inherently volatile, and prediction markets for state-level races carry thin information environments. There's no RealClearPolitics average updated daily. There's no FiveThirtyEight model running thousands of simulations. Traders are pricing off a handful of polls, fundraising reports, and endorsement signals. When new data arrives that contradicts the consensus, repricing is swift.

Alabama GOP primaries compound this fragility. Turnout is typically low, making voter modeling unreliable. The 39% undecided figure in the Tarrance poll isn't an outlier; the March Remington survey showed 47% undecided. This race has never been locked in. The market was pricing institutional advantages as though they had already converted into voter commitments. The PAC poll forced a correction on that assumption.

Moore also faces a specific tactical problem: if the race goes to a runoff (triggered when no candidate clears 50%), his fundraising edge buys him time but doesn't guarantee a second-round coalition. Marshall's statewide name recognition as Attorney General and Hudson's veteran credentials create two distinct flanking threats.

The Case Against Moore: Why 68% Might Still Be Too High

The strongest bear case for Moore is straightforward. He has never polled above 33% in any public survey of this race. His polling average sits at approximately 24%, per 270toWin aggregates. In a primary where the winner needs 50%+1 or faces a runoff, Moore would need to consolidate virtually every undecided voter breaking his way to avoid a second round.

Marshall holds a structural advantage that money cannot easily replicate: statewide name recognition from serving as Alabama's Attorney General. He has run and won statewide before. Moore has won only in the 2nd Congressional District. Hudson, meanwhile, occupies the outsider lane that tends to attract late-deciding voters in Republican primaries.

If Marshall's PAC continues spending on messaging that frames Moore as a Washington insider propped up by D.C. money, the Thune and NRSC endorsements could become liabilities rather than assets in a populist-leaning electorate. Moore's call for the Alabama Legislature to initiate redistricting following the Supreme Court's ruling in Louisiana v. Callais keeps him visible on a base-motivating issue, but it doesn't directly convert undecided primary voters.

What 68% Actually Means for Moore's Path to May 19

A 68% implied probability means the market assigns roughly a one-in-three chance that Moore loses outright or fails to avoid a runoff. That's not a comfortable frontrunner position. It's the price of a candidate who probably wins but faces real downside risk if late polls confirm the race tightening.

For Moore to restore his prior 78% price, he needs one of two things: an independent poll (not PAC-funded) showing him with a double-digit lead, or a major endorsement that freezes undecided voters in his column. A Trump endorsement would likely end the race overnight, but none has materialized. Without it, Moore is fighting on the strength of institutional backing in a cycle where institutional backing carries diminished currency with Republican primary voters.

The May 19 resolution date leaves minimal time for new information to enter the market. Traders pricing Moore at 68% are betting that his money, organization, and endorsements hold against a late surge narrative. They're probably right. But "probably right" is exactly what 68% means, and the 10-percentage-point decline in 72 hours proves this market is listening for reasons to doubt.