Texas' 20th Congressional District

The U.S. Supreme Court ruled on Dec. 4, 2025, that Texas could use its 2025 congressional map in the 2026 elections, reversing a decision by a three-judge panel that ordered the state to return to the 2021 map. Click here to read more about mid-decade redistricting ahead of the 2026 elections.

Texas' 20th Congressional District

Incumbent

Joaquin Castro

Assumed office: January 3, 2013

Texas' 20th Congressional District in the United States House of Representatives is represented by Joaquin Castro (D).

As of the 2020 Census, Texas representatives represented an average of 767,981 residents. After the 2010 Census, each member represented 701,901 residents.

Elections

• 2030
• 2028
• 2026
• 2024
• 2022
• 2020
• 2018

See also: Texas's 20th Congressional District election, 2030

There are no official candidates yet for this election.

See also: United States House of Representatives election in Texas, 2028

There are no official candidates yet for this election.

See also: Texas' 20th Congressional District election, 2026

General election

The primary will occur on March 3, 2026. The general election will occur on November 3, 2026. General election candidates will be added here following the primary.

General election for U.S. House Texas District 20

Anthony Tristan (Independent) is running in the general election for U.S. House Texas District 20 on November 3, 2026.

		Candidate
		Anthony Tristan (Independent)

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	There are no incumbents in this race.
= candidate completed the Ballotpedia Candidate Connection survey.
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Democratic primary

Democratic primary for U.S. House Texas District 20

Incumbent Joaquin Castro (D) and Kendra Wilkerson (D) are running in the Democratic primary for U.S. House Texas District 20 on March 3, 2026.

		Candidate
		Joaquin Castro
		Kendra Wilkerson

---

	Incumbents are bolded and underlined.
= candidate completed the Ballotpedia Candidate Connection survey.
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Republican primary

Republican primary for U.S. House Texas District 20

Edgardo Baez (R) is running in the Republican primary for U.S. House Texas District 20 on March 3, 2026.

		Candidate
		Edgardo Baez

---

	There are no incumbents in this race.
= candidate completed the Ballotpedia Candidate Connection survey.
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See also: Texas' 20th Congressional District election, 2024

General election

General election for U.S. House Texas District 20

Incumbent Joaquin Castro (D) won election in the general election for U.S. House Texas District 20 on November 5, 2024.

		Candidate	%	Votes
✔		Joaquin Castro (D)	100.0	157,890

---

	Incumbents are bolded and underlined. The results have been certified. Source	Total votes: 157,890
= candidate completed the Ballotpedia Candidate Connection survey.
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Withdrawn or disqualified candidates

• Pat Dixon (L)
• William Hayward (Independent)

Democratic primary

Democratic primary for U.S. House Texas District 20

Incumbent Joaquin Castro (D) advanced from the Democratic primary for U.S. House Texas District 20 on March 5, 2024.

		Candidate	%	Votes
✔		Joaquin Castro	100.0	25,018

---

	Incumbents are bolded and underlined. The results have been certified. Source	Total votes: 25,018
= candidate completed the Ballotpedia Candidate Connection survey.
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Republican primary

The Republican primary scheduled for March 5, 2024, was canceled.

Libertarian Party convention

Libertarian convention for U.S. House Texas District 20

Pat Dixon (L) advanced from the Libertarian Party convention for U.S. House Texas District 20 on March 16, 2024.

		Candidate
✔		Pat Dixon

---

	There were no incumbents in this race. The results have been certified. Source
= 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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See also: Texas' 20th Congressional District election, 2022

General election

General election for U.S. House Texas District 20

Incumbent Joaquin Castro (D) defeated Kyle Sinclair (R) and Adam Jonasz (Independent) in the general election for U.S. House Texas District 20 on November 8, 2022.

		Candidate	%	Votes
✔		Joaquin Castro (D)	68.4	115,352
		Kyle Sinclair (R)	31.6	53,226
		Adam Jonasz (Independent) (Write-in)	0.0	21

---

	Incumbents are bolded and underlined. The results have been certified. Source	Total votes: 168,599
= candidate completed the Ballotpedia Candidate Connection survey.
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Withdrawn or disqualified candidates

• Ismael Garcia (Independent)

Democratic primary

Democratic primary for U.S. House Texas District 20

Incumbent Joaquin Castro (D) advanced from the Democratic primary for U.S. House Texas District 20 on March 1, 2022.

		Candidate	%	Votes
✔		Joaquin Castro	100.0	33,214

---

	Incumbents are bolded and underlined. The results have been certified. Source	Total votes: 33,214
= candidate completed the Ballotpedia Candidate Connection survey.
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Republican primary

Republican primary for U.S. House Texas District 20

Kyle Sinclair (R) advanced from the Republican primary for U.S. House Texas District 20 on March 1, 2022.

		Candidate	%	Votes
✔		Kyle Sinclair	100.0	15,938

---

	There were no incumbents in this race. The results have been certified. Source	Total votes: 15,938
= 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

• Raquel Lopez (R)
• Mark Murray (R)
• Michael Stevens (R)

See also: Texas' 20th Congressional District election, 2020

General election

General election for U.S. House Texas District 20

Incumbent Joaquin Castro (D) defeated Mauro Garza (R) and Jeffrey Blunt (L) in the general election for U.S. House Texas District 20 on November 3, 2020.

		Candidate	%	Votes
✔		Joaquin Castro (D)	64.7	175,078
		Mauro Garza (R)	33.1	89,628
		Jeffrey Blunt (L)	2.2	6,017

---

	Incumbents are bolded and underlined. The results have been certified. Source	Total votes: 270,723
= 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

• Adam Jonasz (Independent)
• Adam Martinez-Gomez (Independent)

Republican primary runoff

Republican primary runoff for U.S. House Texas District 20

Mauro Garza (R) defeated Gary Allen (R) in the Republican primary runoff for U.S. House Texas District 20 on July 14, 2020.

		Candidate	%	Votes
✔		Mauro Garza	60.1	7,162
		Gary Allen	39.9	4,762

---

	There were no incumbents in this race. The results have been certified. Source	Total votes: 11,924
= candidate completed the Ballotpedia Candidate Connection survey.
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Democratic primary

Democratic primary for U.S. House Texas District 20

Incumbent Joaquin Castro (D) defeated Justin Lecea (D) and Rob Hostetler (D) in the Democratic primary for U.S. House Texas District 20 on March 3, 2020.

		Candidate	%	Votes
✔		Joaquin Castro	92.1	61,861
		Justin Lecea	4.5	3,047
	Submit photo	Rob Hostetler	3.4	2,252

---

	Incumbents are bolded and underlined. The results have been certified. Source	Total votes: 67,160
= 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

Republican primary for U.S. House Texas District 20

Mauro Garza (R) and Gary Allen (R) advanced to a runoff. They defeated Dominick Dina (R), Anita Kegley (R), and Tammy Orta (R) in the Republican primary for U.S. House Texas District 20 on March 3, 2020.

		Candidate	%	Votes
✔		Mauro Garza	33.3	7,720
✔		Gary Allen	26.9	6,230
		Dominick Dina	22.6	5,242
		Anita Kegley	9.5	2,210
		Tammy Orta	7.7	1,786

---

	There were no incumbents in this race. The results have been certified. Source	Total votes: 23,188
= candidate completed the Ballotpedia Candidate Connection survey.
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Withdrawn or disqualified candidates

• Joshua Carrizales (R)
• Dan McQueen (R)

Libertarian Party convention

Libertarian convention for U.S. House Texas District 20

Jeffrey Blunt (L) advanced from the Libertarian Party convention for U.S. House Texas District 20 on March 21, 2020.

		Candidate
✔		Jeffrey Blunt

---

	There were no incumbents in this race. The results have been certified.
= candidate completed the Ballotpedia Candidate Connection survey.
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See also: United States House of Representatives elections in Texas, 2018

General election

General election for U.S. House Texas District 20

Incumbent Joaquin Castro (D) defeated Jeffrey Blunt (L) in the general election for U.S. House Texas District 20 on November 6, 2018.

		Candidate	%	Votes
✔		Joaquin Castro (D)	80.9	139,038
		Jeffrey Blunt (L)	19.1	32,925

---

	Incumbents are bolded and underlined. The results have been certified. Source	Total votes: 171,9630
= candidate completed the Ballotpedia Candidate Connection survey.
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Democratic primary

Democratic primary for U.S. House Texas District 20

Incumbent Joaquin Castro (D) advanced from the Democratic primary for U.S. House Texas District 20 on March 6, 2018.

		Candidate	%	Votes
✔		Joaquin Castro	100.0	32,189

---

	Incumbents are bolded and underlined. The results have been certified. Source	Total votes: 32,189
= candidate completed the Ballotpedia Candidate Connection survey.
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Previous election results

2016

See also: Texas' 20th Congressional District election, 2016

Heading into the election, Ballotpedia rated this race as safely Democratic. Incumbent Joaquin Castro (D) defeated Paul Pipkin (G) and Jeffrey Blunt (L) in the general election on November 8, 2016. Castro faced no opposition in the Democratic primary on March 1, 2016. No Republican candidates filed to run in the race.

U.S. House, Texas District 20 General Election, 2016

Party		Candidate	Vote %	Votes
	Democratic	Joaquin Castro Incumbent	79.7%	149,640
	Libertarian	Jeffrey Blunt	15.5%	29,055
	Green	Paul Pipkin	4.8%	8,974
Total Votes				187,669
Source: Texas Secretary of State

2014

See also: Texas' 20th Congressional District elections, 2014

The 20th Congressional District of Texas held an election for the U.S. House of Representatives on November 4, 2014. Incumbent Joaquin Castro (D) defeated Jeffrey Blunt (L) in the general election.

U.S. House, Texas District 20 General Election, 2014

Party		Candidate	Vote %	Votes
	Democratic	Joaquin Castro Incumbent	75.7%	66,554
	Libertarian	Jeffrey Blunt	24.3%	21,410
Total Votes				87,964
Source: Texas Secretary of State

2012

See also: Texas' 20th Congressional District elections, 2012

The 20th Congressional District of Texas held an election for the U.S. House of Representatives on November 6, 2012, in which Joaquin Castro (D) won election. He defeated David Rosa (R), A.E. Potts (L) and Antonio Diaz (G) in the general election.

U.S. House, Texas District 20 General Election, 2012

Party		Candidate	Vote %	Votes
	Democratic	Joaquin Castro	63.9%	119,032
	Republican	David Rosa	33.5%	62,376
	Libertarian	A.E. Potts	1.7%	3,143
	Green	Antonio Diaz	0.9%	1,626
Total Votes				186,177
Source: Texas Secretary of State "Official Election Results, 2012 General Election"

2010
On November 2, 2010, Charles Gonzalez won re-election to the United States House. He defeated Clayton Trotter (R) and Michael Idrogo (L) in the general election.

U.S. House, Texas District 20 General Election, 2010
Party		Candidate	Vote %	Votes
	Democratic	Charles Gonzalez incumbent	63.6%	58,645
	Republican	Clayton Trotter	34.4%	31,757
	Libertarian	Michael Idrogo	1.9%	1,783
Total Votes				92,185

2008
On November 4, 2008, Charles Gonzalez won re-election to the United States House. He defeated Robert Litoff (R) and Michael Idrogo (L) in the general election.

U.S. House, Texas District 20 General Election, 2008
Party		Candidate	Vote %	Votes
	Democratic	Charles Gonzalez incumbent	71.9%	127,298
	Republican	Robert Litoff	25.2%	44,585
	Libertarian	Michael Idrogo	2.9%	5,172
Total Votes				177,055

2006
On November 7, 2006, Charles Gonzalez won re-election to the United States House. He defeated Michael Idrogo (L) in the general election.

U.S. House, Texas District 20 General Election, 2006
Party		Candidate	Vote %	Votes
	Democratic	Charles Gonzalez incumbent	87.4%	68,348
	Libertarian	Michael Idrogo	12.6%	9,897
Total Votes				78,245

2004
On November 2, 2004, Charles Gonzalez won re-election to the United States House. He defeated Roger Scott (R), Jessie Bouley (I) and Michael Idrogo (L) in the general election.

U.S. House, Texas District 20 General Election, 2004
Party		Candidate	Vote %	Votes
	Democratic	Charles Gonzalez incumbent	65.5%	112,480
	Republican	Roger Scott	32%	54,976
	Independent	Jessie Bouley	1.4%	2,377
	Libertarian	Michael Idrogo	1.1%	1,971
Total Votes				171,804

2002
On November 5, 2002, Charles Gonzalez won re-election to the United States House. He ran unopposed in the general election.

U.S. House, Texas District 20 General Election, 2002
Party		Candidate	Vote %	Votes
	Democratic	Charles Gonzalez incumbent	100%	68,685
Total Votes				68,685

2000
On November 7, 2000, Charles Gonzalez won re-election to the United States House. He defeated Alejandro De Pena (L) in the general election.

U.S. House, Texas District 20 General Election, 2000
Party		Candidate	Vote %	Votes
	Democratic	Charles Gonzalez incumbent	87.7%	107,487
	Libertarian	Alejandro De Pena	12.3%	15,087
Total Votes				122,574

1998
On November 3, 1998, Charlie Gonzalez won election to the United States House. He defeated James Walker (R) and Alejandro DePena (L) in the general election.

U.S. House, Texas District 20 General Election, 1998
Party		Candidate	Vote %	Votes
	Democratic	Charlie Gonzalez	63.2%	50,356
	Republican	James Walker	35.6%	28,347
	Libertarian	Alejandro DePena	1.3%	1,010
Total Votes				79,713

1996
On November 5, 1996, Henry Gonzalez won re-election to the United States House. He defeated James Walker (R), Alejandro DePena (L) and Lyndon Felps (Natural Law) in the general election.

U.S. House, Texas District 20 General Election, 1996
Party		Candidate	Vote %	Votes
	Democratic	Henry Gonzalez incumbent	63.7%	88,190
	Republican	James Walker	34.4%	47,616
	Libertarian	Alejandro DePena	1.6%	2,156
	Natural Law	Lyndon Felps	0.3%	447
Total Votes				138,409

1994
On November 8, 1994, Henry Gonzalez won re-election to the United States House. He defeated Carl Bill Colyer (R) in the general election.

U.S. House, Texas District 20 General Election, 1994
Party		Candidate	Vote %	Votes
	Democratic	Henry Gonzalez incumbent	62.5%	60,114
	Republican	Carl Bill Colyer	37.5%	36,035
Total Votes				96,149

1992
On November 3, 1992, Henry Gonzalez won re-election to the United States House. He ran unopposed in the general election.

U.S. House, Texas District 20 General Election, 1992
Party		Candidate	Vote %	Votes
	Democratic	Henry Gonzalez incumbent	100%	103,755
Total Votes				103,755

1990
On November 6, 1990, Henry Gonzalez won re-election to the United States House. He ran unopposed in the general election.

U.S. House, Texas District 20 General Election, 1990
Party		Candidate	Vote %	Votes
	Democratic	Henry Gonzalez incumbent	100%	56,318
Total Votes				56,318

District map

Redistricting

2025-2026

See also: Redistricting in Texas ahead of the 2026 elections

In August 2025, the Texas Legislature proposed a new congressional district map during special legislative sessions that prompted Democratic legislators to leave the state to prevent a quorum. Click here to read more about the 2025 Democratic walkout during mid-decade redistricting in Texas.

On August 20, 2025, the Texas House approved House Bill 4 containing a new congressional map by an 88-52 vote along party lines. On August 23, 2025, the Texas Senate approved the map by an 18-11 vote along party lines. Texas Gov. Greg Abbott (R) signed the new map into law on August 29, 2025. The bill text stated the new district boundaries would take effect for the 2026 elections.

On November 18, 2025, a three-judge panel ruled 2-1 to block Texas from using the 2025 map in the 2026 elections, and ordered the state to use the 2021 map. On November 21, 2025, the U.S. Supreme Court temporarily paused the panel's ruling, reinstating the new map pending further Court action. On December 4, 2025, the U.S. Supreme Court ruled the 2025 map could be used for the 2026 elections.

2020-2021

See also: Redistricting in Texas after the 2020 census

After the 2020 census, Texas enacted new congressional districts on October 25, 2021. The Senate released a proposed congressional map on September 27, 2021, and approved an amended version of the proposal on October 8, 2021. On October 13, 2021, the House Redistricting Committee approved an amended version of the congressional map, and both chambers of the legislature approved a finalized version of the map on October 18, 2021. The Senate approved the proposal in an 18-13 vote, and the House approved the bill in an 84-59 vote. Gov. Greg Abbott (R) signed the map into law on October 25, 2021. This map took effect for Texas' 2022 congressional elections.

How does redistricting in Texas work? In Texas, both congressional and state legislative district boundaries are drawn by the Texas State Legislature. These lines are subject to veto by the governor.

If the state legislature is unable to approve a state legislative redistricting plan, a backup commission must draw the lines (the backup commission is not involved in congressional redistricting). This backup commission, established in 1948, comprises the following members:

1. Lieutenant governor
2. Speaker of the Texas House of Representatives
3. Attorney general
4. State comptroller
5. Commissioner of the General Land Office

The Texas Constitution requires that state legislative districts be contiguous and "that they preserve whole counties when population mandates permit."

2020

2024

The 20th Congressional District of Texas, prior to the 2010-2011 redistricting process.

See also: Redistricting in Texas after the 2010 census

Following the 2010 United States Census, Texas gained four congressional seats. Texas' final congressional redistricting plan was approved by the Texas Legislature and signed by Gov. Rick Perry (R) in June 2013.

District analysis

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

See also: FiveThirtyEight's elasticity scores

2026

Heading into the 2026 elections, based on results from the 2024 and 2020 presidential elections, the Cook Partisan Voter Index for this district is D+12. This meant that in those two presidential elections, this district's results were 12 percentage points more Democratic than the national average. This made Texas' 20th the 110th most Democratic district nationally.

2024

Heading into the 2024 elections, based on results from the 2020 and 2016 presidential elections, the Cook Partisan Voter Index for this district was D+15. This meant that in those two presidential elections, this district's results were 15 percentage points more Democratic than the national average. This made Texas' 20th the 96th most Democratic district nationally.

Daily Kos calculated what the results of the 2020 presidential election in this district would have been following redistricting. Joe Biden (D) would have defeated Donald Trump (R) 65.8%-32.7%.

2022

Heading into the 2022 elections, based on results from the 2020 and 2016 presidential elections, the Cook Partisan Voter Index for this district was D+15. This meant that in those two presidential elections, this district's results were 15 percentage points more Democratic than the national average. This made Texas' 20th the 93rd most Democratic district nationally.

Daily Kos calculated what the results of the 2020 presidential election in this district would have been following redistricting. Joe Biden (D) would have received 65.8% of the vote in this district and Donald Trump (R) would have received 32.7%.

2018

Heading into the 2018 elections, based on results from the 2016 and 2012 presidential elections, the Cook Partisan Voter Index for this district was D+10. This meant that in those two presidential elections, this district's results were 10 percentage points more Democratic than the national average. This made Texas' 20th Congressional District the 117th most Democratic nationally.

FiveThirtyEight's September 2018 elasticity score for states and congressional districts measured "how sensitive it is to changes in the national political environment." This district's elasticity score was 0.95. This means that for every 1 point the national political mood moved toward a party, the district was expected to move 0.95 points toward that party.

See also

• Redistricting in Texas
• Texas' 20th Congressional District election, 2024
• Texas' 20th Congressional District election, 2022
• Texas' 20th Congressional District election, 2020
• Texas' 20th Congressional District election, 2018

External links

• GovTrack.us Texas's 20th Congressional District & Map

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

Vacant

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 (12)

Vacancies (1)