U.S. House of Representatives District 21

Candidates

Primary Election	General Election	Winner
R ★ Lamar Smith VOTES: 40,262 60.4% R Matt McCall VOTES: 22,596 33.9% R Michael J. Smith VOTES: 3,772 5.7%	R ★ Lamar Smith VOTES: 135,513 71.8%	R Lamar Smith
G Antonio Diaz	G Antonio Diaz VOTES: 27,782 14.7%
L David Cunningham L Mark Loewe L Ryan Shields	L Ryan Shields VOTES: 25,483 13.5%