Jason Cahill
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Jason Cahill (Republican Party) is running for election to the U.S. House to represent Texas' 21st Congressional District. He declared candidacy for the Republican primary scheduled on March 3, 2026.[source]
2026 battleground election
Ballotpedia identified the March 3, 2026, Republican primary as a battleground election. The summary below is from our coverage of this election, found here.
Thirteen candidates are running in the Republican primary for Texas' 21st Congressional District on March 3, 2026. The filing deadline is December 8, 2025. Two candidates lead in media attention and endorsements: Mark Teixeira (R) and Trey Trainor (R).
Incumbent Chip Roy (R) is running in the Republican primary for Texas Attorney General in 2026. For a list of U.S. Representatives who are not running for re-election in 2026, click here. The last time this district was open was 2018, when Roy was first elected.
According to The Texas Tribune’s Marijke Friedman, "Both Roy and [President Donald] Trump won handily in the 21st District in 2024, and the seat remained solidly Republican under the new congressional map approved by the Texas Legislature."[1] As of October 2025, The Cook Political Report with Amy Walter, Inside Elections with Nathan Gonzales, and Larry J. Sabato's Crystal Ball each rated the general election Safe/Solid Republican.
Teixeira is a former professional baseball player and World Series champion.[2][3] Teixeira says he would support the military, end American involvement in long-term conflicts, and prioritize American interests to "champion President Trump’s America First agenda."[4] Teixeira says he would support law enforcement and border security to promote local and national safety.[4] He says he would cut federal spending and promote Texas’ oil, gas, and nuclear industries to improve the economy.[4] Teixeira also says he would "restore patriotic education rooted in American and Texas values."[4] U.S. Reps. Jim Jordan (R-Ohio) and Steve Scalise (R-La.) endorsed Teixeira.[5]
Trainor is a lawyer who previously worked as general counsel for the Texas Secretary of State and the Republican Party of Texas.[6] He also served as a commissioner on the Federal Election Commission (FEC) from 2020 to 2025.[7] Trainor says his legislative priorities would be improving border security, reducing federal spending, and upholding Constitutional rights.[6] Trainor is campaigning on his legal experience, saying he has "been on the front lines defending the Constitution" throughout his career.[6] He is also campaigning on his experience on the FEC, saying he has a history of promoting election security.[6] Highlighting Trump appointing him to the FEC, Trainor says he supports Trump’s policies and describes himself as a "soldier of the conservative cause and the America First agenda."[6] Texas Railroad Commissioner Wayne Christian (R) and former chair of the Republican Party of Texas Cathie Adams (R) endorsed Trainor.[8]
Also running in the primary are Daniel Betts (R), Jason Cahill (R), Jacques DuBose (R), Ezekiel Enriquez (R), Denis Goulet (R), Weston Martinez (R), Matt Okerson (R), Paul Rojas (R), Kyle Sinclair (R), Heather Tessmer (R), and Mike Wheeler (R).
Texas conducted redistricting between the 2024 and 2026 elections. As a result, district lines in this state changed. To review how redistricting took place in Texas, click here. For a list of all states that drew new district lines between 2024 and 2026, click here.
Elections
2026
See also: Texas' 21st Congressional District election, 2026
General election
The primary will occur on March 3, 2026. The general election will occur on November 3, 2026. Additional general election candidates will be added here following the primary.
General election for U.S. House Texas District 21
Dan McQueen is running in the general election for U.S. House Texas District 21 on November 3, 2026.
Candidate | ||
 | Dan McQueen (Independent) | |
| ||||
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Democratic primary election
Democratic primary for U.S. House Texas District 21
Javi Andrade, Gary Taylor, Regina Vanburg, and Daniel Weber are running in the Democratic primary for U.S. House Texas District 21 on March 3, 2026.
| ||||
| = candidate completed the Ballotpedia Candidate Connection survey. | ||||
| If you are a candidate and would like to tell readers and voters more about why they should vote for you, complete the Ballotpedia Candidate Connection Survey. | ||||
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Republican primary election
Republican primary for U.S. House Texas District 21
The following candidates are running in the Republican primary for U.S. House Texas District 21 on March 3, 2026.
Candidate | ||
 | Daniel Betts | |
| Jason Cahill | ||
| Jacques DuBose | ||
 | Ezekiel Enriquez | |
| Denis Goulet | ||
 | Weston Martinez | |
 | Matt Okerson | |
 | Paul Rojas | |
 | Kyle Sinclair | |
 | Mark Teixeira | |
 | Heather Tessmer | |
 | Trey Trainor | |
| Mike Wheeler | ||
| ||||
| = candidate completed the Ballotpedia Candidate Connection survey. | ||||
| If you are a candidate and would like to tell readers and voters more about why they should vote for you, complete the Ballotpedia Candidate Connection Survey. | ||||
Do you want a spreadsheet of this type of data? Contact our sales team. | ||||
Withdrawn or disqualified candidates
- Jessica Karlsruher (R)
- Chip Roy (R)
Polls
- See also: Ballotpedia's approach to covering polls
We provide results for polls that are included in polling aggregation from RealClearPolitics, when available. We will regularly check for polling aggregation for this race and add polls here once available. To notify us of polls available for this race, please email us.
Election campaign finance
Candidate spending
| Name | Party | Receipts* | Disbursements** | Cash on hand | Date |
|---|---|---|---|---|---|
| Daniel Betts | Republican Party | $111,868 | $6,879 | $104,989 | As of September 30, 2025 |
| Jason Cahill | Republican Party | $283,283 | $1,337 | $281,946 | As of September 30, 2025 |
| Jacques DuBose | Republican Party | $0 | $0 | $0 | Data not available*** |
| Ezekiel Enriquez | Republican Party | $50,150 | $44,963 | $815 | As of September 30, 2025 |
| Denis Goulet | Republican Party | $0 | $0 | $0 | Data not available*** |
| Weston Martinez | Republican Party | $0 | $0 | $0 | Data not available*** |
| Matt Okerson | Republican Party | $0 | $0 | $0 | Data not available*** |
| Paul Rojas | Republican Party | $0 | $0 | $0 | Data not available*** |
| Kyle Sinclair | Republican Party | $0 | $0 | $0 | Data not available*** |
| Mark Teixeira | Republican Party | $713,852 | $17,470 | $696,382 | As of September 30, 2025 |
| Heather Tessmer | Republican Party | $0 | $0 | $0 | Data not available*** |
| Trey Trainor | Republican Party | $0 | $0 | $0 | Data not available*** |
| Mike Wheeler | Republican Party | $202,126 | $609 | $201,516 | As of September 30, 2025 |
|
Source: Federal Elections Commission, "Campaign finance data," 2026. This product uses the openFEC API but is not endorsed or certified by the Federal Election Commission (FEC).
* According to the FEC, "Receipts are anything of value (money, goods, services or property) received by a political committee." |
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Satellite spending
- See also: Satellite spending
Satellite spending describes political spending not controlled by candidates or their campaigns; that is, any political expenditures made by groups or individuals that are not directly affiliated with a candidate. This includes spending by political party committees, super PACs, trade associations, and 501(c)(4) nonprofit groups.[9][10][11]
If available, this section includes links to online resources tracking satellite spending in this election. To notify us of a resource to add, email us.
| By candidate | By election |
|---|---|
Endorsements
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Campaign themes
2026
Ballotpedia survey responses
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Campaign finance summary
Note: The finance data shown here comes from the disclosures required of candidates and parties. Depending on the election or state, this may represent only a portion of all the funds spent on their behalf. Satellite spending groups may or may not have expended funds related to the candidate or politician on whose page you are reading this disclaimer. Campaign finance data from elections may be incomplete. For elections to federal offices, complete data can be found at the FEC website. Click here for more on federal campaign finance law and here for more on state campaign finance law.
See also
2026 Elections
External links
Footnotes
- ↑ The Texas Tribune, "Former MLB player Mark Teixeira announces run for 21st Congressional District," August 28, 2025
- ↑ ESPN, "Mark Teixeira biography," accessed October 26, 2025
- ↑ Mark Teixeira 2026 campaign website, "Home," accessed October 26, 2025
- ↑ 4.0 4.1 4.2 4.3 Mark Teixeira 2026 campaign website, "Issues," accessed October 26, 2025
- ↑ Mark Teixeira 2026 campaign website, "Endorsements," accessed October 26, 2025
- ↑ 6.0 6.1 6.2 6.3 6.4 Trey Trainor 2026 campaign website, "About Trey," accessed October 26, 2025
- ↑ The Texas Tribune, "Texas GOP lawyer and former FEC chair Trey Trainor announces run for Chip Roy’s seat in Congress," October 6, 2025
- ↑ Trey Trainor 2026 campaign website, "Home," accessed October 26, 2025
- ↑ OpenSecrets.org, "Outside Spending," accessed December 12, 2021
- ↑ OpenSecrets.org, "Total Outside Spending by Election Cycle, All Groups," accessed December 12, 2021
- ↑ National Review.com, "Why the Media Hate Super PACs," December 12, 2021
