**Houston Gaines secured the Republican nomination for Georgia’s open 10th congressional district seat by winning 66.9% of the vote in the May 19, 2026 primary.** The district became open after incumbent Mike Collins pursued a U.S. Senate bid. Gaines, a sitting state representative, defeated challengers Ryan Millsap and Jeff Baker by a wide margin that exceeded the 50% threshold required under Georgia election rules to avoid a runoff. On the Democratic side, Pamela DeLancy also prevailed outright in a three-candidate primary. These decisive first-round outcomes in a solidly Republican district reflect limited intra-party competition and strong early consolidation behind the leading candidates, consistent with the high trader-implied probability that an outright winner would emerge without advancing to a June runoff. No subsequent legal or procedural developments have altered the certified primary results.