Everett Jackson's dominant 90% implied probability in the TX-30 Republican primary stems from his strong first-round performance on March 3, 2026, where he captured 38% of the vote to Sholdon Daniels' 24%, advancing both to the May 26 runoff while eliminating Gregor Heise and Nils Walker. Traders reflect this momentum through skin-in-the-game consensus, bolstered by Jackson's endorsements from conservative organizations and superior campaign infrastructure in the Dallas-area battleground. With early voting starting May 16, low-turnout runoffs historically favor frontrunners like Jackson. Scenarios to challenge include a Daniels surge via consolidated support from eliminated candidates, unexpected revelations, or higher-than-expected turnout among his base.