| U.S. Senate | - John Sen Cornyn (incumbent) · Republican
- Colin Allred · Democratic
- Anna Bender · Republican
- Virgil Bierschwale · Republican
- Theodore E. Brown Jr. · Libertarian
- Sara Larue Canady · Republican
- Jasmine Crockett · Democratic
- Wesley Hunt · Republican
- Gulrez Khan · Republican
- Barrett Anthony McNabb · Republican
- Warren Kenneth Paxton Jr. · Republican
- Jade Simmons · Independent
- Michael Swanson · Democratic
- James Talarico · Democratic
- Terry Virts · Democratic
| Yes | 21 |
| U.S. Senate | - Daniel M Sims · Libertarian
| No, open seat | 2 |
| U.S. House, district 1 | - Nathaniel Quentin Moran (incumbent) · Republican
- Dax Cornell Alexander · Democratic
- Yolanda Rena Prince · Democratic
- Masika Akilah Ray · Democratic
| Yes | 7 |
| U.S. House, district 2 | - Daniel Crenshaw (incumbent) · Republican
- Jameson Ellis · Republican
- Martin Etwop · Republican
- Shaun Finnie · Democratic
- Nicholas Lee Plumb · Republican
- Steve Toth · Republican
| Yes | 3 |
| U.S. House, district 3 | - Evan Hunt · Democratic
- Mark Newgent · Republican
- Keith Alan Self · Republican
- Jordan Douglas Wheatley · Democratic
| No, open seat | 2 |
| U.S. House, district 4 | - Patrick Fallon (incumbent) · Republican
- Jason Pearce · Democratic
| Yes | 3 |
| U.S. House, district 5 | - Lance Gooden (incumbent) · Republican
- Travis Edwards · Republican
- Chelsey Alexandra Hockett · Democratic
- Chelsey Alexandra Hockett · Democratic
- Ruth Torres · Democratic
| Yes | 1 |
| U.S. House, district 6 | - John Kevin Ellzey Sr. (incumbent) · Republican
- Danny Minton · Democratic
- Brian Stahl · Republican
| Yes | 2 |
| U.S. House, district 7 | - Elizabeth Fletcher (incumbent) · Democratic
- Tina Cohen · Republican
- Alexander Hale · Republican
- Alexander Zachary Kalai · Republican
| Yes | 2 |
| U.S. House, district 8 | - Morgan Joe Luttrell (incumbent) · Republican
- Keith Coleman · Democratic
- Brett Jensen · Republican
- Laura Jones · Democratic
- Jessica Hart Steinmann · Republican
- Nick B. Tran · Republican
- Deddrick T Wilmer · Republican
| Yes | 3 |
| U.S. House, district 9 | - Jaimy Blanco · Republican
- James Buford · Democratic
- Briscoe Rowell Cain III · Republican
- Leticia Gutierrez · Democratic
- R. Todd Ivey · Democratic
- Alexandra Mealer · Republican
- Dan Mims · Republican
- Roy Morales · Independent
- Crystal Sarmiento · Republican
- Steve Stockman · Republican
- Dwayne Bradley Stovall · Republican
- Terry Lee Thain · Republican
- Terry Virts · Democratic
| No, open seat | 4 |
| U.S. House, district 10 | - Michael McCaul (incumbent) · Republican
- Rob Altman · Republican
- Walter Benjamin Bius · Republican
- Robert Brown · Republican
- Robert Brown · Republican
- Tayhlor Coleman · Democratic
- Sarah Eckhardt · Democratic
- Sarah Eckhardt · Democratic
- Chris Gober · Republican
- Jessica Karlsruher · Republican
- Kara King · Republican
- Scott Macleod · Republican
- Dawn Marshall · Democratic
- Caitlin McClay Rourk · Democratic
- Jennifer Sharon · Republican
- Jeremy Story · Republican
| Yes | 5 |
| U.S. House, district 11 | - August Lee Pfluger II (incumbent) · Republican
- Claire Anne Reynolds · Democratic
| Yes | 1 |
| U.S. House, district 12 | - Craig Goldman (incumbent) · Republican
- Kenneth Morgan-Aguilera · Democratic
| Yes | 3 |
| U.S. House, district 13 | - Ronny Lynn Jackson (incumbent) · Republican
- Mark Nair · Democratic
- Chasity Wedgeworth · Republican
| Yes | 0 |
| U.S. House, district 14 | - Randy Weber (incumbent) · Republican
- Thurman Bill Bartie · Democratic
- Richard Harvey Davis III · Democratic
- Konstantinos Vogiatzis · Democratic
- Konstantinos Vogiatzis · Democratic
| Yes | 1 |
| U.S. House, district 15 | - Monica De La Cruz (incumbent) · Republican
- Ada Cuellar · Democratic
- Bobby Pulido · Democratic
| Yes | 1 |
| U.S. House, district 16 | - Veronica Escobar (incumbent) · Democratic
- Manuel Barraza · Republican
- Hector Miguel Cabildo Jr · Republican
- Deliris Montanez Berrios (Dmb) · Republican
| Yes | 3 |
| U.S. House, district 17 | - Pete Sessions (incumbent) · Republican
- James Gordon Mitchell · Democratic
- Casey Shepard · Democratic
| Yes | 1 |
| U.S. House, district 18 | - Alexander Green (incumbent) · Democratic
- Sylvester Turner (incumbent) · Democratic
- Allen D Berry · Republican
- Gretchen Brown · Democratic
- Amanda Edwards · Democratic
- Stephen Huey · Democratic
- Christian Menefee · Democratic
- Elizabeth Vences · Republican
| Yes | 5 |
| U.S. House, district 19 | - Jodey Arrington (incumbent) · Republican
- James Bob Barbee · Republican
- Jason Corley · Republican
- Abraham Enriquez · Republican
- Donald R May · Republican
- Kyle Rable · Democratic
- Tom Sell · Republican
- Matthew Smith · Republican
- Ryan Zink · Republican
| Yes | 2 |
| U.S. House, district 20 | - Joaquin Castro (incumbent) · Democratic
- Edgardo Rafael Baez · Republican
| Yes | 3 |
| U.S. House, district 21 | - Chip Roy (incumbent) · Republican
- Daniel Betts · Republican
- Jason Cahill · Republican
- Ezekiel Enriquez · Republican
- Kristin A Hook · Democratic
- Weston Charles Martinez · Republican
- Paul Rojas · Republican
- Gary Frank Taylor · Democratic
- Mark Charles Teixeira · Republican
- James E Trainor III · Republican
- Regina Vanburg · Democratic
- Mike Wheeler · Republican
| Yes | 8 |
| U.S. House, district 22 | - Troy Nehls (incumbent) · Republican
- Rebecca Clark · Republican
- Marquette Greene-Scott · Democratic
- Trever Nehls · Republican
- Robert Thomas · Democratic
- Pearl Ann Vuorinen · Democratic
| Yes | 2 |
| U.S. House, district 23 | - Ernest Anthony Tony Gonzales II (incumbent) · Republican
- Francisco 'Quico' Raul Canseco · Republican
- Gretel Marysdatter Enck · Democratic
- Brandon Herrera · Republican
- Santos M. Limon · Democratic
- Susan Storey Rubio · Republican
- Katy Padilla Stout · Democratic
- Veronica Williams · Independent
| Yes | 6 |
| U.S. House, district 24 | - Elizabeth Ann Van Duyne (incumbent) · Republican
- Jon Buchwald · Democratic
- Kevin Beryl Burge · Democratic
- Nathan Thomas Hawks · Democratic
- Timothy Joe Ware II · Democratic
| Yes | 1 |
| U.S. House, district 25 | - Roger Williams (incumbent) · Republican
- William James Marks · Democratic
| Yes | 2 |
| U.S. House, district 26 | - Brandon Gill (incumbent) · Republican
- Ernest Robinson Lineberger III · Democratic
- Steven James Shook · Democratic
| Yes | 2 |
| U.S. House, district 27 | - Michael Cloud (incumbent) · Republican
- Chris Hatley · Republican
- Brandon Hawbaker · Republican
- Tanya W Lloyd · Democratic
| Yes | 3 |
| U.S. House, district 28 | - Henry R. Cuellar (incumbent) · Democratic
- Juan Esparza · Republican
- Tano Tijerina · Republican
- Ricardo Villarreal · Democratic
| Yes | 6 |
| U.S. House, district 29 | - Sylvia R Garcia (incumbent) · Democratic
- Jarvis Johnson · Democratic
- Robert Slater · Democratic
| Yes | 1 |
| U.S. House, district 30 | - Jasmine Crockett (incumbent) · Democratic
- Sholdon Daniels · Republican
- Frederick Haynes III · Democratic
- Gregor Heinrich Heise · Republican
- Everett Honorable Jackson · Republican
- Rodney Labruce · Democratic
- Barbara Mallory Caraway · Democratic
- Barbara Mallory Caraway · Democratic
| Yes | 8 |
| U.S. House, district 31 | - John R Rep. Carter (incumbent) · Republican
- William P Abel · Republican
- David Lee Berry · Republican
- Steven Clay Dowell Jr · Republican
- Justin Early · Democratic
- Abhiram Garapati · Republican
- Valentina Gomez Noriega · Republican
- Raymond H Hamden II · Republican
- Elvis Arturo Lossa · Republican
- Offer Vince Shlomi · Republican
- Gregory James Stoker · Green
- Stuart Norman Whitlow · Democratic
| Yes | 3 |
| U.S. House, district 32 | - Dan F. Barrios · Democratic
- Ryan Binkley · Republican
- Paul Bondar · Republican
- Aimee Carrasco · Republican
- Darrell Day · Republican
- Gordon Heslop · Republican
- Monty Montanez · Republican
- Eric Niehaus · Republican
- Zain Shaito · Republican
- Abteen Vaziri · Republican
- Jace Yarbrough · Republican
| No, open seat | 7 |
| U.S. House, district 33 | - Marc Allison Veasey (incumbent) · Democratic
- Colin Allred · Democratic
- Zeeshan Hafeez · Democratic
- Julie Johnson · Democratic
- Kurt Schwab · Republican
| Yes | 5 |
| U.S. House, district 34 | - Vicente Gonzalez (incumbent) · Democratic
- Keith Allen · Republican
- Luis F Buentello · Republican
- Eric Flores · Republican
- Mayra Nohemi Flores · Republican
- Mauro Everett Garza · Republican
- Alfredo Hinojosa Jr. · Republican
- Gregory Scott Kunkle Jr. · Republican
- Charles Mandel · Republican
- Mario Alberto Morales · Republican
- Jay Nagy · Republican
- Etienne Ph.D. Rosas · Democratic
| Yes | 2 |
| U.S. House, district 35 | - Randal Haskel Adams · Republican
- Joshua Cortez · Republican
- Carlos De La Cruz Jr. · Republican
- Jay Commander Furman · Republican
- Maureen Galindo · Democratic
- Johnny Garcia · Democratic
- Vanessa F. Hicks-Callaway · Republican
- Ryan P Krause · Republican
- John Lira · Democratic
- John Lujan · Republican
- Whitney Masterson-Moyes · Democratic
- Steven William Wright · Republican
| No, open seat | 2 |
| U.S. House, district 36 | - Brian Babin (incumbent) · Republican
- Rhonda J Hart · Democratic
- Doug Rogers · Democratic
| Yes | 1 |
| U.S. House, district 37 | - Lloyd Doggett (incumbent) · Democratic
- Greg Casar · Democratic
- Ge'Nell Gary · Republican
- Janet Malzahn · Republican
- Lauren B. Pena · Republican
| Yes | 3 |
| U.S. House, district 38 | - Wesley Hunt (incumbent) · Republican
- Jon Bonck · Republican
- Shelly Dezevallos · Republican
- Craig Goralski · Republican
- Marvalette Hunter · Democratic
- Melissa A McDonough · Democratic
- Alex McMenemy · Green
- Barrett McNabb · Republican
- Carmen Montiel · Republican
- Michael Pratt · Republican
- Larry David Rubin · Republican
- William Miskey Taggart IV · Independent
- William M Taggart IV · Independent
- Jeffrey Michael Yuna · Republican
| Yes | 6 |