The Midterm Editor's note: This page was last updated October 28, 2026. Candidate fields, district lines, and poll numbers change; confirm the latest details with the linked official source before you vote.
Key facts
| Item | Detail |
|---|---|
| Office | U.S. House, Texas 15th District |
| Incumbent | Monica De La Cruz (R), elected 2022, re-elected 2024 |
| Candidates | De La Cruz (R) and the Democratic nominee |
| Election Day | Tuesday, November 3, 2026 |
| District shape | A long, narrow seat that runs from the San Antonio area south through the Rio Grande Valley |
| All races | 2026 House elections hub |
| Voting guide | How to vote in Texas |
| Official results | Texas secretary of state |
What this seat decides
TX-15 is not one of the districts that decides which party holds the House: the national majority runs through suburban seats in New York, California, and the Midwest. Its importance is different. It is a border district that Republicans won in a region Democrats had held for generations, and both parties treat it as evidence about whether that shift is durable.
The district's economy runs on international trade, agriculture, health care, and the public sector. The Port of entry at Hidalgo and the freight that crosses it connect the local economy to Mexico's, which makes tariff policy a household issue rather than an abstraction. Health care is the second economic question: the district has a large share of residents on Medicaid or without coverage, and rural hospitals operate on thin margins.
Water and growth are the newer pressure points. The Rio Grande's supply is allocated under a treaty with Mexico and a compact among states, and fast-growing suburbs north of the Valley are competing for the same water. A House member cannot settle those questions alone, but the seat's occupant sits on the committees that fund the programs involved.
Who is running
Monica De La Cruz (Republican). De La Cruz was elected in 2022 and re-elected in 2024, according to the House clerk's records. She has focused her committee work on financial services and has campaigned on border enforcement, small business, and energy.
The Democratic nominee. Democrats have made this district a priority in every cycle since 2022, and the nominee is listed on the certified ballot published by the Texas secretary of state. We name a challenger only after the filing is certified and a campaign is running.
Other candidates. Texas ballots can include Libertarian, Green, and independent candidates, and the secretary of state publishes the full lineup for each county.
Redistricting
Texas redrew its congressional map in 2025, and the new lines changed the boundaries of several South Texas districts. Redistricting can make a seat safer for one party or force two incumbents into the same district, and the Texas maps have been challenged in court before. Check the current district lines and any pending challenge with the secretary of state before you rely on a district-level number from an earlier cycle.
Polls and ratings
We do not publish a poll number without a source and a date. District-level polling is sparse and often released by the campaigns themselves, which is a reason to weigh the sponsor as much as the topline:
- 270toWin's 2026 House map — district-level results and ratings.
- Cook Political Report and Sabato's Crystal Ball — House race ratings with dates.
- Decision Desk HQ — race ratings and results.
A rating describes the state of a race at a moment, not a forecast. Check the date before you rely on one.
Key issues
Border enforcement and immigration
Immigration is the issue both parties put first here. The district includes miles of the Rio Grande and a major port of entry, and federal policy on asylum, parole, and enforcement decides how many people cross and how quickly cases are processed. Our immigration issue page explains the national debate; the local version is about staffing, detention capacity, and the trade that crosses the bridge every day.
Health care and rural hospitals
The district's Medicaid enrollment is high and its hospital margins are thin. Federal reimbursements, the enhanced subsidies that expanded ACA coverage, and the rural hospital programs all run through Congress, which makes health care a campaign issue even in a district where the state sets most of the rules.
Jobs, trade, and tariffs
Laredo and Hidalgo are among the busiest land ports in the country, and the district's employers depend on cross-border supply chains. Tariffs and trade rules set in Washington show up in local freight volumes, so both candidates will be asked where they stand on the current tariff regime. Our economy issue page covers the national picture.
Water
The Rio Grande's allocation is governed by a 1944 treaty with Mexico and a compact among states. A dry year strains both, and the district's growing suburbs are competing with agriculture for the same supply. This is a state and federal question at once, and it rarely appears in national coverage of the race.
How to vote in Texas
Texas requires an eligible excuse to vote by mail, and the list of qualifying excuses is narrow. Early voting has already run, and polls are open 7 a.m. to 7 p.m. on Election Day, though county rules and locations vary. Your county elections office is the final authority on your polling place.
Check your registration and mail ballot status at VoteTexas.gov. Our Texas voting guide covers photo ID, the mail ballot excuse list, and accessibility.
What to watch
- Turnout in Hidalgo County. The Valley's voters are the district's Democratic base, and the party needs presidential-year turnout in an off-year.
- The northern suburbs. Guadalupe and the counties around San Antonio have grown quickly and lean Republican, which is where De La Cruz builds her margin.
- The tariff argument. Port traffic is visible to voters in a way that most national issues are not.
Results
Results were reported after polls closed on November 3, 2026. County counts are canvassed by the state, and a close district can take days to settle. Our results hub explains how race calls are made and why a House majority may not be clear on election night.
Frequently Asked Questions
Who represents Texas's 15th congressional district?
Monica De La Cruz (R) has represented the district since 2023, after winning the seat in 2022 and holding it in 2024.
Is the Texas 15th district competitive in 2026?
Democrats have targeted the seat in every cycle since it flipped, and both parties are spending there. Ratings from Cook, Sabato, and Decision Desk HQ are the place to check its current status.
What changed in the Texas redistricting?
Texas redrew its congressional map in 2025. New lines changed district boundaries across the state, including in South Texas, and the maps have faced court challenges. The secretary of state publishes the current lines.
When is Election Day in Texas?
Tuesday, November 3, 2026. Early voting has already run, and polls are open 7 a.m. to 7 p.m. on Election Day.
How do I vote by mail in Texas?
Texas requires an eligible excuse, such as age 65 or older, disability, or being out of the county during the election. The Texas voting guide lists the qualifying reasons and the application deadline.
Sources
- 270toWin: 2026 House elections — district map, results, and ratings. Accessed October 28, 2026.
- Texas secretary of state — ballot, district lines, and results. Accessed October 28, 2026.
- Cook Political Report — House race ratings. Accessed October 28, 2026.
- Sabato's Crystal Ball — race ratings. Accessed October 28, 2026.
- Associated Press — Texas coverage and race calls. Accessed October 28, 2026.
- National Conference of State Legislatures — redistricting and election rules. Accessed October 28, 2026.
Last updated October 28, 2026. The candidate field and district lines are based on late-October reporting and should be re-checked against the certified ballot.