Texas' 25th Congressional District election, 2026 (March 3 Democratic primary)

Texas redrew its congressional district boundaries in August 2025. Voters will elect representatives under the new map in 2026. Click here to read more about mid-decade redistricting ahead of the 2026 elections.

← 2024
Texas' 25th Congressional District
Democratic primary Republican primary General election
Election details
Filing deadline: December 8, 2025
Primary: March 3, 2026 Primary runoff: May 26, 2026 General: November 3, 2026
How to vote
Poll times: 7 a.m. to 7 p.m. Voting in Texas
Race ratings
Cook Political Report: Solid Republican DDHQ and The Hill: Pending Inside Elections: Solid Republican Sabato's Crystal Ball: Safe Republican
Ballotpedia analysis
U.S. Senate battlegrounds U.S. House battlegrounds Federal and state primary competitiveness Ballotpedia's Election Analysis Hub, 2026
See also
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A Democratic Party primary takes place on March 3, 2026, in Texas' 25th Congressional District to determine which Democratic candidate will run in the district's general election on November 3, 2026.

Candidate filing deadline	Primary election	General election
December 8, 2025	March 3, 2026	November 3, 2026

A primary election is an election in which registered voters select a candidate that they believe should be a political party's candidate for elected office to run in the general election. They are also used to choose convention delegates and party leaders. Primaries are state-level and local-level elections that take place prior to a general election. Texas utilizes an open primary system. State law requires voters to sign the following pledge before voting in a primary: "I am a (insert appropriate political party) and understand that I am ineligible to vote or participate in another political party's primary election or convention during this voting year."

For information about which offices are nominated via primary election, see this article.

This page focuses on Texas' 25th Congressional District Democratic primary. For more in-depth information on the district's Republican primary and the general election, see the following pages:

• Texas' 25th Congressional District election, 2026 (March 3 Republican primary)
• Texas' 25th Congressional District election, 2026

Candidates and election results

Democratic primary election

Democratic primary for U.S. House Texas District 25

William Marks and Dione Sims are running in the Democratic primary for U.S. House Texas District 25 on March 3, 2026.

		Candidate
		William Marks
		Dione Sims

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	There are no incumbents in this race.
= 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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Withdrawn or disqualified candidates

• Stephen O'Toole (D)

Candidate profiles

This section includes candidate profiles that may be created in one of two ways: either the candidate completed Ballotpedia's Candidate Connection survey, or Ballotpedia staff may compile a profile based on campaign websites, advertisements, and public statements after identifying the candidate as noteworthy. For more on how we select candidates to include, click here.

William Marks

Party: Democratic Party

Incumbent: No

Submitted Biography:  "William and his family moved to Texas in 2023 after a 22-year career in the military and 6-year career at Meta. Marks is a combat veteran, six time Navy communications award winner, and U.S. Atlantic Fleet Destroyer Squadron 24 Shiphandler of the Year. He and his family live in Arlington. In 2025 Marks founded Operation Caged Bird and raised more than $70,000 to provide banned books to students at the U.S. Naval Academy. For his efforts he was awarded the Courage Project Award. Before moving to Texas Marks joined Meta (then Facebook) as Community Development Manager for the Western U.S. He awarded more than $10 million in donations to hundreds of schools, small businesses, and nonprofits. Marks graduated from the U.S. Naval Academy in Annapolis, Md. in 1996 and retired from active-duty in 2018 as a commander. Marks was elected to the Amsterdam High School Hall of Fame in 2021. In his final military assignment, Marks was the senior spokesperson for DoD intelligence issues, leading media engagement and special projects for the Vice President and Ambassador Nikki Haley. In this role, he held a Top Secret / SCI security clearance. Marks was Chief of Media for the U.S. Navy from 2015-2016, directing the Navy’s engagement with national and international journalists, including crisis communications during an international hostage situation, a mass shooting, and roll out of the Navy’s $160 billion budget proposal."

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Key Messages

To read this candidate's full survey responses, click here.

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Down with Oligarchs - I will prohibit unelected billionaires from running shadow government agencies and stealing your data. - I will continue to reduce fraud, waste and abuse in the government - but I will do it with independent, experienced fraud investigators and accountants. - I will vote to ban stock trading by members of Congress. Upon election, Congress members must shift their investments out of individual stocks and into index funds. - I will sign a balanced budget pledge - Congress should not end its session without a balanced budget. We must reverse the $3.8 trillion deficit increase Republicans are enacting.

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Hands Off - Hands off our social security. - Hands off our medicare and medicaid. The Congressional Budget Office estimated 10.3 million people will lose health care coverage under Republicans. - Hands off women's rights and bodies - each person must have the freedom to choose their own health needs with consultation by a physician - not a politician. - Hands off public schools. As the son of a public school teacher, I will increase funding for public schools by voting against private school vouchers.

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Constitution & Ethics - I will draft an ethics pledge for Congress - no revolving door between Congress and industry. Ban lobbying by former Congress members. - I will vote to prohibit foreign influence; there must be strict prohibition on all foreign gifts. - I will vote to overturn Citizens United. Dark money should be banned from politics. Political donations should only be made by individuals and families. - I support due process for all. We must defend the rule of law. You are innocent until proven guilty. - I will vote for term limits of 12 years for both the House and Senate.

Dione Sims

Party: Democratic Party

Incumbent: No

Submitted Biography:  "I am Dione Sims—a servant leader, community advocate, and the granddaughter of Dr. Opal Lee, the Grandmother of Juneteenth. For decades, I have shown up for people on the ground—organizing, listening, and building solutions rooted in dignity and respect. As the president and founder of a non-profit focused on the work of unity, understanding and social justice an the work, I am a force for positive change developing several programs that empower the individual. A software quality development director by vocation, I’ve lead diverse teams of professionals that delivered for our clients every time. Since 2015, I’ve co-produced the Annual Juneteenth Fort Worth Celebration and engineered the Opal’s Walk campaign for national Juneteenth holiday recognition. I’ve served on several boards where I championed the powerful message of freedom for everybody everyday. I’m running for Congress not to represent a party, but to represent people—authentically, courageously, and truthfully—in a time that demands real change."

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Key Messages

To read this candidate's full survey responses, click here.

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People over politics. This campaign is not about red versus blue—it’s about right versus wrong, truth versus harm, and putting everyday people back at the center of our democracy. That means accountability with integrity. Leadership means showing up, telling the truth, listening deeply, and answering to the people—not donors, not special interests, not party pressure.

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I’m seeking this office because I believe freedom has to show up in real life, not just in speeches, in whether one job can pay the bills, whether a family can afford healthcare, and whether our kids can dream without debt. I’ve spent my life building practical pathways through community work, workforce programs, and service rooted in faith. Now I’m ready to bring that same steady, solutions-first leadership to Congress and fight for living wages, strong public schools, and an economy that works for working people.

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Nearly 250 years ago, our nation was founded on the principle that no single person should hold unchecked power. The Constitution created three co-equal branches of government to protect the people, safeguard democracy, and prevent authoritarian rule. Today, that balance is under strain. The erosion of congressional oversight and the weakening of checks and balances threaten the very system that has sustained our democracy for generations. I am running because Congress must reclaim its constitutional role. We must restore accountability, defend the rule of law, and renew the true spirit of American democracy — not only for the people of Texas’ 25th District, but to strengthen our nation’s credibility and leadership around the world.

Voting information

See also: Voting in Texas

Election information in Texas: March 3, 2026, election.

What was the voter registration deadline?

• In-person: Feb. 2, 2026
• By mail: Postmarked by Feb. 2, 2026
• Online: N/A

Is absentee/mail-in voting available to all voters?

No

What was the absentee/mail-in ballot request deadline?

• In-person: Feb. 20, 2026
• By mail: Received by Feb. 20, 2026
• Online: N/A

What is the absentee/mail-in ballot return deadline?

• In-person: March 3, 2026
• By mail: Postmarked by March 3, 2026

Is early voting available to all voters?

Yes

What are the early voting start and end dates?

Feb. 17, 2026 to Feb. 27, 2026

Are all voters required to present ID at the polls? If so, is a photo or non-photo ID required?

N/A

When are polls open on Election Day?

7:00 a.m. - 7:00 p.m. (CT/MT)

Campaign finance

Name	Party	Receipts*	Disbursements**	Cash on hand	Date
William Marks	Democratic Party	$70,773	$38,648	$32,125	As of February 11, 2026
Dione Sims	Democratic Party	$0	$0	$0	Data not available***
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." ** According to the FEC, a disbursement "is a purchase, payment, distribution, loan, advance, deposit or gift of money or anything of value to influence a federal election," plus other kinds of payments not made to influence a federal election. *** Candidate either did not report any receipts or disbursements to the FEC, or Ballotpedia did not find an FEC candidate ID.

District analysis

Click the tabs below to view information about voter composition, past elections, and demographics in both the district and the state.

• District map - A map of the district before and after redistricting ahead of the 2026 election.
• Competitiveness - Information about the competitiveness of 2026 U.S. House elections in the state.
• Presidential elections - Information about presidential elections in the district and the state.
• State party control - The partisan makeup of the state's congressional delegation and state government.

• District map
• Competitiveness
• Presidential elections
• State party control

Below is the district map used in the 2024 election next to the map in place for the 2026 election. Click on a map below to enlarge it.

2024

2026

See also: Primary election competitiveness in state and federal government, 2026

This section contains data on U.S. House primary election competitiveness in Texas.

Post-filing deadline analysis

The following analysis covers all U.S. House districts up for election in Texas in 2026. Information below was calculated on Dec. 8, 2025, and may differ from information shown in the table above due to candidate replacements and withdrawals after that time.

Two hundred fifty-two candidates — 98 Democrats and 154 Republicans — ran for Texas’ 38 U.S. House districts. That’s 6.6 candidates per district. There were 4.2 candidates per district in 2024, 5.8 in 2022, 6.4 in 2020, 5.9 in 2018, 3.5 in 2016, and 2.8 in 2014.

These were the first elections to take place since the Texas Legislature passed a new congressional map. The Texas House of Representatives passed it on Aug. 20, 2025, and the Texas Senate passed it on Aug. 23, 2025. Texas Gov. Greg Abbott (R) signed the new congressional map into law on Aug. 29, 2025.

This was the highest total number of candidates who ran for the U.S. House since 2014.

Ten districts were open in 2026. There were three districts open in 2024, six in 2022, six in 2020, eight in 2018, two in 2016, and one in 2014. 

Reps. Morgan Luttrell (R-8th), Michael McCaul (R-10th), Jodey Arrington (R-19th), Troy Nehls (R-22nd), Marc Veasey (D-33rd), and Lloyd Doggett (D-37th) retired from public office. Reps. Jasmine Crockett (D-30th) and Wesley Hunt (R-38th) ran for the U.S. Senate. Rep. Chip Roy (R-21st) ran for attorney general of Texas.

Two incumbents — Reps. Christian Menefee (D) and Al Green (D) — ran against each other in the redrawn 18th district. Menefee was the incumbent in the 18th district, and Green was the incumbent in the 9th district.

Fifty-nine primaries — 32 Democratic and 28 Republican — were contested in 2026. In total, there were 39 contested primaries in 2024, 44 in 2022, 50 in 2020, 46 in 2018, 33 in 2016, and 19 in 2014.

Fifteen candidates ran for the open 9th district, 21st district, and 35th district, tying for the most candidates running for a district in 2026.

Nineteen incumbents — eight Democrats and 11 Republicans — faced primary challengers in 2026. There were 19 incumbents in a contested primary in 2024, 19 in 2022, 18 in 2020, 15 in 2018, 19 in 2016, and 12 in 2014.

Candidates filed to run in the Republican and Democratic primaries in all 38 districts, meaning no districts were guaranteed to either party.

Partisan Voter Index

See also: The Cook Political Report's Partisan Voter Index

Heading into the 2026 elections, based on results from the 2024 and 2020 presidential elections, the Cook Partisan Voter Index for this district is R+18. This meant that in those two presidential elections, this district's results were 18 percentage points more Republican than the national average. This made Texas' 25th the 49th most Republican district nationally.

2020 presidential election results

The table below shows what the vote in the 2024 presidential election was in this district. The presidential election data was compiled by The Downballot.

2024 presidential results in Texas' 25th Congressional District

Kamala Harris	Donald Trump
40.4%	57.7%

Presidential voting history

See also: Presidential election in Texas, 2024

Texas presidential election results (1900-2024)

• 16 Democratic wins
• 15 Republican wins

Year	1900	1904	1908	1912	1916	1920	1924	1928	1932	1936	1940	1944	1948	1952	1956	1960	1964	1968	1972	1976	1980	1984	1988	1992	1996	2000	2004	2008	2012	2016	2020	2024
Winning Party	D	D	D	D	D	D	D	R	D	D	D	D	D	R	R	D	D	D	R	D	R	R	R	R	R	R	R	R	R	R	R	R

See also: Party control of Texas state government

Congressional delegation

The table below displays the partisan composition of Texas' congressional delegation as of February 2026.

Congressional Partisan Breakdown from Texas
Party	U.S. Senate	U.S. House	Total
Democratic	0	13	13
Republican	2	25	27
Independent	0	0	0
Vacancies	0	0	0
Total	2	38	40

State executive

The table below displays the officeholders in Texas' top four state executive offices as of October 2025.

State executive officials in Texas, October 2025

Office	Officeholder
Governor	Greg Abbott
Lieutenant Governor	Dan Patrick
Secretary of State	Jane Nelson
Attorney General	Ken Paxton

State legislature

Texas State Senate

Party		As of October 2025
	Democratic Party	11
	Republican Party	18
	Other	0
	Vacancies	2
Total		31

Texas House of Representatives

Party		As of October 2025
	Democratic Party	62
	Republican Party	88
	Other	0
	Vacancies	0
Total		150

Trifecta control

Texas Party Control: 1992-2025
Three years of Democratic trifectas  •  Twenty-three years of Republican trifectas
Scroll left and right on the table below to view more years.

Year	92	93	94	95	96	97	98	99	00	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25
Governor	D	D	D	R	R	R	R	R	R	R	R	R	R	R	R	R	R	R	R	R	R	R	R	R	R	R	R	R	R	R	R	R	R	R
Senate	D	D	D	D	D	R	R	R	R	R	R	R	R	R	R	R	R	R	R	R	R	R	R	R	R	R	R	R	R	R	R	R	R	R
House	D	D	D	D	D	D	D	D	D	D	D	R	R	R	R	R	R	R	R	R	R	R	R	R	R	R	R	R	R	R	R	R	R	R

Ballot access

The table below details filing requirements for U.S. House candidates in Texas in the 2026 election cycle. For additional information on candidate ballot access requirements in Texas, click here.

Filing requirements for U.S. House candidates, 2026
State	Office	Party	Signatures required	Filing fee	Filing deadline	Source
Texas	U.S. House	Democratic or Republican	2% of votes cast for governor in the district in the last election, or 500, whichever is less	$3,125	12/8/2025	Source
Texas	U.S. House	Unaffiliated	5% of all votes cast for governor in the district in the last election, or 500, whichever is less	N/A	12/8/2025	Source

See also

• Texas' 25th Congressional District election, 2026 (March 3 Republican primary)
• Texas' 25th Congressional District election, 2026
• United States House elections in Texas, 2026 (March 3 Democratic primaries)
• United States House elections in Texas, 2026 (March 3 Republican primaries)
• United States House Democratic Party primaries, 2026
• United States House Republican Party primaries, 2026
• United States House of Representatives elections, 2026
• U.S. House battlegrounds, 2026

External links

Suggest a link

• Search Google News for this topic

Footnotes

[show]

Texas' current delegation to the United States Congress

Senators

John Cornyn (R)

Ted Cruz (R)

Representatives

District 1

Nathaniel Moran (R)

District 2

Daniel Crenshaw (R)

District 3

Keith Self (R)

District 4

Pat Fallon (R)

District 5

Lance Gooden (R)

District 6

Jake Ellzey (R)

District 7

Lizzie Fletcher (D)

District 8

Morgan Luttrell (R)

District 9

Al Green (D)

District 10

Michael McCaul (R)

District 11

August Pfluger (R)

District 12

Craig Goldman (R)

District 13

Ronny Jackson (R)

District 14

Randy Weber (R)

District 15

Monica De La Cruz (R)

District 16

Veronica Escobar (D)

District 17

Pete Sessions (R)

District 18

Christian Menefee (D)

District 19

Jodey Arrington (R)

District 20

Joaquin Castro (D)

District 21

Chip Roy (R)

District 22

Troy Nehls (R)

District 23

Tony Gonzales (R)

District 24

Beth Van Duyne (R)

District 25

Roger Williams (R)

District 26

Brandon Gill (R)

District 27

Michael Cloud (R)

District 28

Henry Cuellar (D)

District 29

Sylvia Garcia (D)

District 30

Jasmine Crockett (D)

District 31

John Carter (R)

District 32

Julie Johnson (D)

District 33

Marc Veasey (D)

District 34

Vicente Gonzalez (D)

District 35

Greg Casar (D)

District 36

Brian Babin (R)

District 37

Lloyd Doggett (D)

District 38

Wesley Hunt (R)

Republican Party (27)

Democratic Party (13)

2025-2026 Elections to the United States Congress

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Election information

Ballot access for major and minor party candidates • List of candidates running for election • List of congressional challengers • Retiring senators • Retiring representatives

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Super PACs/Organizations

American Bridge 21st Century • American Crossroads • American Unity PAC • Campaign for Primary Accountability • Club for Growth Action • Congressional Leadership Fund • Cooperative of American Physicians IE Committee• Crossroads Generation • Ending Spending Action Fund • Endorse Liberty • Fair Share Action • FreedomWorks for America • Government Integrity Fund • House Majority PAC • Independence USA Fund • League of Conservation Voters • Liberty for All PAC • Majority PAC • National Association of Realtors • NEA Advocacy Fund • Now or Never PAC • Planned Parenthood Votes • Ready for Hillary • Republicans for a Prosperous America • Restore America's Voice PAC • SEIU Pea-Federal • Women Vote!

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