**Multiple Republican candidates competing in Louisiana’s 5th congressional district jungle primary make an outright first-round majority unlikely.** The November 3, 2026, primary places all contenders—incumbent Julia Letlow and several GOP challengers including Stewart Cathey, Michael Echols, Gabe Firment, and others—on a single ballot under the state’s majority-vote system. A candidate needs more than 50 percent to win without a December 12 runoff. Redistricting following the Supreme Court’s decision in *Louisiana v. Callais* altered the district lines and shifted the election format from closed partisan primaries to the current open primary. This change, combined with fresh candidate filings completed in early August 2026, has produced a crowded field that fragments Republican support in a district that has historically delivered strong majorities for the incumbent. Past elections saw Letlow exceed 60 percent, but the current split among multiple Republicans reduces the chance any single candidate reaches the threshold. Trader pricing at 92.5 percent for “No” reflects this structural reality: vote dispersion across the Republican slate is expected to force a runoff absent an unforeseen consolidation of support or withdrawal before November. No recent polling indicates a frontrunner approaching majority levels.