Overview

• Trey Trainor filed Monday to run for Texas’ 21st Congressional District, the seat Rep. Chip Roy is leaving to pursue the attorney general post.
• Trainor resigned from the Federal Election Commission after a five-year tenure that included stints as chair and, most recently, vice chair.
• His departure leaves the six-member commission without the quorum required to take official enforcement actions on federal campaign finance matters.
• The Republican primary is crowded, with declared candidates including former MLB All-Star Mark Teixeira, Michael Wheeler, Jason Cahill and Ezekiel “Zeke” Enriquez, with more contenders expected before the December deadline.
• Trainor, a Driftwood resident and longtime conservative lawyer who previously served as counsel to the Texas GOP and the Texas Secretary of State, is running on border security, fiscal restraint and civil-liberties protections in a district stretching from Austin through the Hill Country into northern San Antonio.