March 3, 2020 Primary
District Judge, 337th Judicial District
March 3, 2020 · 245,850 votes cast · 1 counties
Statewide total
Official canvass| COLLEEN GAIDODEM | 142,978 | 58.2% |
| JOHN A. CLARKDEM | 44,177 | 18.0% |
| DAVID C. VUONGDEM | 30,952 | 12.6% |
| BRENNEN DUNNDEM | 27,743 | 11.3% |
Margin: 98,801 votes (40.2%)
Results by county
| County | GAIDO | CLARK | VUONG | DUNN | Total |
|---|---|---|---|---|---|
| Harris | 142,978 | 44,177 | 30,952 | 27,743 | 245,850 |
County totals reconcile to the statewide total
Source: 2020 MARCH 3RD DEMOCRATIC PRIMARY/CountybyCountyCanvassReport.xlsx, 2020 MARCH 3RD DEMOCRATIC PRIMARY/OfficialCanvassReport.xlsx — Texas Secretary of State, loaded 9/7/2026