Jon Bonck's commanding 47.7% in the March 3 Republican primary for Texas' 38th Congressional District—nearly 30 points ahead of Shelly deZevallos at 18.6% in a crowded 10-candidate field—propels trader consensus to 91.7% implied probability of him winning the May 26 runoff in this open seat vacated by Rep. Wesley Hunt's Senate bid. Bonck's momentum stems from President Trump's February endorsement, backing from Sen. Ted Cruz and Club for Growth, superior fundraising with $1.47 million raised and $438,000 cash on hand post-primary, plus recent support from Rep. Brian Babin. DeZevallos trails despite grassroots efforts and $666,000 raised; realistic challenges include low runoff turnout favoring her base, negative attacks gaining traction, or an unforeseen Bonck scandal, though historical primary runoff patterns favor first-round leaders by wide margins.