Don Horn
Ran for Texas 4th Congressional District · Republican
Lost the 2026 primary
Ballot status source: Lost the 2026 Republican primary on March 3, 2026 — Texas Secretary of State — candidate in the 2026 REPUBLICAN PRIMARY ELECTION for U. S. REPRESENTATIVE DISTRICT 4 · read Mar 3, 2026
Sources (2)
- Lost the 2026 Republican primary on March 3, 2026 — Texas Secretary of State — candidate in the 2026 REPUBLICAN PRIMARY ELECTION for U. S. REPRESENTATIVE DISTRICT 4
- the SOS 2026 general-election certification (2026-08-28) lists Pat Fallon as the R nominee for that office
Filed under Texas 4th Congressional District. The race page has 2 candidates, 3 certified results. See the race
The District
What Texas 4th Congressional District covers
Covers all of Red River County, Grayson County, Lamar County and Fannin County; parts of Bowie County and Collin County.
253 precincts · District lines: Congressional lines: enacted plan "PLANC2333 (Texas congressional plan, 2025)" (H.B. 4, 89th Legislature, 2nd Called Session (2025); signed by Gov. Abbott Aug 29, 2025); 2026 status: In effect for the 2026 elections: a three-judge district court's preliminary injunction (Nov 18, 2025) was stayed by the U.S. Supreme Court on Dec 4, 2025; used for the Mar 3, 2026 primary. Official file https://data.capitol.texas.gov/dataset/planc2333 · Precinct lines: no contest override (the 2020-2024 House contests were on the prior lines); no-electorate fill where 2020 census blocks hold 0 people; no-electorate fill where 2020 census blocks hold 0 people
Not on file for Don yet: Key Votes, Their Money, Advertising, In Their Words, In the News, Reach Them, The Paper Trail. Coverage varies by state and office.
File read Sep 25, 2026. Each item names its source. Record ID p_4qfzc9377.
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