The intense, nationally prominent Republican primary contest in Kentucky's 4th Congressional District on May 19 drove the overwhelming trader consensus around 100-110k votes. President Trump's endorsement of challenger Ed Gallrein against incumbent Thomas Massie, combined with record outside spending in the most expensive House primary on record, mobilized Republican voters across the 21-county district far above prior midterm primary benchmarks, roughly doubling the 2024 figure. Preliminary and near-final counts showed approximately 104k total ballots cast in the race, aligning precisely with the leading outcome bucket and leaving minimal room for revision upon certification. Factors that could still shift final tallies into adjacent ranges remain limited to minor adjustments in provisional or late-reported ballots from rural counties.