Mark Teixeira holds a substantial edge over Kristin Hook in the November 3 general election for Texas’s 21st congressional district, an open seat following Chip Roy’s departure. The district’s post-redistricting composition, which preserves a Republican tilt consistent with recent presidential results, underpins forecasts projecting a Teixeira margin near 20 points. Teixeira secured the Republican nomination with over 60 percent in the March primary amid strong fundraising and endorsements, while Hook prevailed in a lower-turnout Democratic contest. With limited recent polling and no major campaign developments in the past month, trader pricing on narrower Republican margins reflects the race’s structural Republican advantage tempered by uncertainty over final turnout and any late-cycle shifts in voter mobilization.