5:15 p.m. Wednesday update: U.S. Rep. Michael McCaul, an Austin Republican who has represented this snaking Austin-to-Houston district since 2005, defeated his primary opponent with 80 percent of the vote.
McCaul could face either Mike Siegel, an assistant city attorney for Austin; or Tawana Walter-Cadien, a registered nurse who ran for the seat in 2012, 2014 and 2016. Siegel won 40 percent of Democratic support, and Walter-Cadien followed with 18 percent.
1 a.m. update: U.S. Rep. Michael McCaul trounced his GOP challenger, John Cook, with 80 percent of the votes in the Republican primary for Texas’ 10th congressional district.
McCaul will square off in November against the winner of the Democratic runoff between Mike Siegel and Tawana Walter-Cadien. Siegel led the seven-person field in Tuesday’s primary with 40 percent of the vote, while Walter-Cadien was a distant second with 18 percent, with 99 percent of the votes counted.
The rest of the Democratic field included Tami Walker (16 percent); Madeline Eden (14 percent); Matt Harris (7 percent); Kevin Nelson (4 percent); and Richie DeGrow (1 percent).
Earlier: U.S. Rep. Michael McCaul, an Austin Republican who has represented this snaking Austin-to-Houston district since 2005, appears headed to the November general election, with a large lead in early voting Tuesday.
McCaul had 85 percent of the vote over challenger John W. Cook, with about 5,200 votes counted so far.
McCaul, 56, could face one of two lawyers who were slightly ahead in the Democratic primary: Mike Siegel, 40, a City of Austin assistant city attorney; or Tami Walker, 52, who formerly worked for the Texas Department of Transportation and has centered her law practice on the energy and engineering sectors. Siegel had 30.2 percent of the vote so far, and Walker 21.7 percent. But only a few hundred Democratic votes have been reported so far.
Trump won this district by 9 percentage points in 2016.