Ronny Jackson defeated Josh Winegarner in the Republican primary runoff for Texas’ 13th Congressional District. As of 9:45 p.m. Central Time, Jackson had received 55.6% of the vote to Winegarner’s 44.4%, with 90% of precincts reporting.

President Donald Trump (R), U.S. Sens. Lindsey Graham (R-S.C.) and Josh Hawley (R-Mo.), and former Texas Gov. Rick Perry (R) endorsed Jackson. Incumbent Rep. Mac Thornberry (R), who did not seek re-election, endorsed Winegarner, along with U.S. Reps. Mike Conaway (R-Texas), Lance Gooden (R-Texas), and Kenny Marchant (R-Texas).

Thornberry, who was first elected in 1994, won his last election in 2018 by a margin of victory of 65 percentage points. Major independent observers rate the general election as solid Republican or safe Republican.