U.S. House seat for Texas's 28th congressional district. Representatives serve two-year terms.

10 candidates filed, 3 active for the 2026 House election in Texas District 28. Party primary on Mar 3, 2026. General election on Nov 3, 2026.
| Year | Winner | Result | Runner-Up | Total Votes |
|---|---|---|---|---|
| 2024 | Henry Cuellar D | 52.8% | 237,298 | |
| 2022 | Henry Cuellar D | 56.7% | 165,581 | |
| 2020 | Henry Cuellar D | 58.3% | 235,844 | |
| 2018 | Henry Cuellar D | 84.4% | 139,226 | |
| 2016 | Henry Cuellar D | 66.2% | 184,442 | |
| 2014 | Henry Cuellar D | 82.1% | 76,136 | |
| 2012 | Henry Cuellar D | 67.9% | 165,645 | |
| 2010 | Henry Cuellar D | 56.3% | 111,402 | |
| 2008 | Henry Cuellar D | 68.7% | 179,740 | |
| 2004 | Henry Cuellar D | 59.0% | 180,166 | |
| 2002 | Ciro D Rodriguez D | 71.1% | 100,420 | |
| 2000 | Ciro D Rodriguez D | 89.0% | 138,260 | |
| 1998 | Ciro D Rodriguez D | 90.5% | 79,353 | |
| 1996 | Frank Tejeda D | 75.4% | 146,135 | |
| 1994 | Frank Tejeda D | 70.9% | 104,375 |