SAN ANTONIO — Republican Chip Roy has won his campaign for Texas's 21st Congressional District.

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He beat Democratic challenger Joseph Kopser with 51.5 percent of the vote.  

The district spans nearly 6,000 square miles from north San Antonio, up Interstate-35, and into Austin. This is the first time the seat has been vacant since the late ‘80s. Rep. lamar Smith announced his retirement last year.

Roy most recently served as the vice president of strategy for the Texas Public Policy Foundation. Previously, he served first assistant attorney general of Texas under Ken Paxton, chief of staff to U.S. Sen. Ted Cruz and as a senior advisor to Texas Gov. Rick Perry, including as director of State-Federal Relations for the State of Texas.

He earned a bachelor's degree in commerce and an M.S. in management information systems from the University of Virginia and a J.D. from the University of Texas.