Updated at 11:21 p.m.
In preliminary voting results, U.S. House of Representatives incumbent Lamar Smith, who has served in Congress since 1987, clinched the Republican nomination for the District 21 race with 76.5 percent of the vote.
He will face Candace Duval, who beat Daniel Boone for the Democratic nomination with 61 percent of the vote.
"I am very happy with the results and very appreciative of the support I received from voters of the 21st district," Smith said. "It is very reassuring to have voters' approval."










