Incumbent Ken Mercer has won the Republican nomination for the District 5 spot on the State Board of Education.
Mercer, a software engineer from San Antonio, defeated physician assistant Steve Salyer to face Democrat Rebecca Bell-Metereau of San Marcos in the general election on Nov. 6.
All 15 board spots are up for re-election following redistricting last year. District 5 is in Central Texas.
Mercer, a former state legislator, was first elected to the board in 2006.
As a board member, Mercer, a social conservative, had tried to retain the requirement in schools that the "strengths and weaknesses" of all scientific theories, including evolution, be taught.
The board's responsibilities include establishing the state's public school curriculum, approving textbooks and managing the state's permanent school fund.