Former La Marque Mayor Geraldine Sam lost to incumbent Ted Cruz during Tuesday's GOP primary for one of the state's two senate seats.
Cruz was holding about 85 percent of the statewide vote late Tuesday, according to complete but unofficial election results.
Sam received less than 2 percent of the vote and finished last in the five-candidate race.
Sam, 66, was the first person to get her name on the statewide ballot. She made national headlines during the 2016 Republican National Convention by attacking Cruz.
Sam was mayor of La Marque from 2009 to 2011. She was the first African-American mayor of that city, and the first African-American woman to be elected as mayor of any city in Galveston County.