AUSTIN, Texas — Gov. Greg Abbott has ordered Texas and U.S. flags to be flown at half-staff statewide in honor of Carole Keeton, a trailblazing leader and longtime public servant who died this week.

Texas Gov. Greg Abbott announced on Monday that the special election to fill the seat vacated following the death of Rep. Sylvester Turner will be held on Nov. 4.

Democrats have argued that Gov. Greg Abbott, a Republican, did not act faster to fill the vacant seat because he didn’t want ...