Marc Cowart

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Marc Cowart

Republican Party

Candidate, Harris County Treasurer

Elections and appointments

Last election

March 3, 2026

Next election

November 3, 2026

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Marc Cowart (Republican Party) is running for election for Harris County Treasurer in Texas. Cowart is on the ballot in the general election on November 3, 2026. Cowart advanced from the Republican primary on March 3, 2026.

Elections

2026

See also: Municipal elections in Harris County, Texas (2026)

General election

The general election will occur on November 3, 2026.

The candidate list in this election may not be complete.

General election for Harris County Treasurer

Incumbent Carla Wyatt (D) and Marc Cowart (R) are running in the general election for Harris County Treasurer on November 3, 2026.

		Candidate
		Carla Wyatt (D)
	Submit photo	Marc Cowart (R)

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	Incumbents are bolded and underlined.
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Democratic primary

The candidate list in this election may not be complete.

Democratic primary for Harris County Treasurer

Incumbent Carla Wyatt (D) advanced from the Democratic primary for Harris County Treasurer on March 3, 2026.

		Candidate	%	Votes
✔		Carla Wyatt	100.0	294,388

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	Incumbents are bolded and underlined. Source	Total votes: 294,388
= candidate completed the Ballotpedia Candidate Connection survey.
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Republican primary

The candidate list in this election may not be complete.

Republican primary for Harris County Treasurer

Marc Cowart (R) defeated Hayley Hagan (R) in the Republican primary for Harris County Treasurer on March 3, 2026.

		Candidate	%	Votes
✔	Submit photo	Marc Cowart	64.6	109,100
	Submit photo	Hayley Hagan	35.4	59,666

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	There were no incumbents in this race. Source	Total votes: 168,766
= candidate completed the Ballotpedia Candidate Connection survey.
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Endorsements

Cowart received the following endorsements. To send us additional endorsements, click here.

• Gov. Greg Abbott (R)
• Houston Chronicle Editorial Board
• Texas Homeschool Coalition
• True Texas Project

2018

See also: Municipal elections in Harris County, Texas (2018)

General election

General election for Harris County Department of Education Board of Trustees Position 3, At-Large

Richard Cantu defeated Marc Cowart in the general election for Harris County Department of Education Board of Trustees Position 3, At-Large on November 6, 2018.

		Candidate	%	Votes
✔		Richard Cantu (D)	56.7	670,827
	Submit photo	Marc Cowart (R)	43.3	512,094

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	There were no incumbents in this race. The results have been certified. Source	Total votes: 1,182,921
= candidate completed the Ballotpedia Candidate Connection survey.
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Democratic primary runoff election

Democratic primary runoff for Harris County Department of Education Board of Trustees Position 3, At-Large

Richard Cantu defeated Josh Wallenstein in the Democratic primary runoff for Harris County Department of Education Board of Trustees Position 3, At-Large on May 22, 2018.

		Candidate	%	Votes
✔		Richard Cantu	50.3	26,041
		Josh Wallenstein	49.7	25,780

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	There were no incumbents in this race. The results have been certified. Source	Total votes: 51,821
= candidate completed the Ballotpedia Candidate Connection survey.
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Democratic primary election

Democratic primary for Harris County Department of Education Board of Trustees Position 3, At-Large

Richard Cantu and Josh Wallenstein advanced to a runoff. They defeated Elvonte Patton in the Democratic primary for Harris County Department of Education Board of Trustees Position 3, At-Large on March 6, 2018.

		Candidate	%	Votes
✔		Richard Cantu	39.0	53,792
✔		Josh Wallenstein	30.8	42,425
		Elvonte Patton	30.2	41,630

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	There were no incumbents in this race. The results have been certified. Source	Total votes: 137,847
= 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.

Republican primary election

Republican primary for Harris County Department of Education Board of Trustees Position 3, At-Large

Marc Cowart advanced from the Republican primary for Harris County Department of Education Board of Trustees Position 3, At-Large on March 6, 2018.

		Candidate	%	Votes
✔	Submit photo	Marc Cowart	100.0	110,287

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	There were no incumbents in this race. The results have been certified. Source	Total votes: 110,287
= 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.

Campaign themes

2026

Ballotpedia survey responses

See also: Ballotpedia's Candidate Connection

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You can ask Marc Cowart to fill out this survey by using the button below or emailing marc@marccowart.com.

See also

2026 Elections

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Harris County Treasurer

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