The crowded Republican primary for Florida’s redrawn 9th congressional district remains tightly contested days before the August 18 vote, with trader probabilities clustered among four leading candidates and over 40 percent of likely primary voters still undecided in the most recent Victory Insights survey. Chalifoux’s substantial self-funding and prior general-election experience in the district offset Butler’s stronger donor fundraising and targeted endorsements, while Martinez and Green draw support from distinct voter bases tied to business experience and military service. The newly configured boundaries, which added more Republican-leaning areas, have expanded the candidate field without yet producing clear frontrunner separation. Late developments such as additional endorsements, final ad spending, or turnout operations in key counties could shift support among remaining undecided voters before ballots close.