CD2 open: Houston attorney amd former surgeon Jon Spiers filed in the Republican primary to run for the seat being vacated by U.S. Rep. Ted Poe (R-Humble), becoming the seventh Republican to do so.

CD6 open: Mel Hassell and Troy Ratterree filed in the Republican primary for the seat being vacated by U.S. Rep. Joe Barton (R-Ennis). We were unable to identify them conclusively.

CD21 open: Chip Roy, an Austin political consultant and former chief of staff for U.S. Sen. Ted Cruz (R), announced he would seek the Republican nomination to succeed the retiring U.S. Rep. Lamar Smith (R-San Antonio). Roy’s campaign team includes Cruz campaign alums Jordan Berry, John Drogin and Jason Johnson. Meanwhile, Jenifer Sarver, an Austin media consultant and former speechwriter for former U.S. Sen. Kay Bailey Hutchison (R), also announced she would seek the Republican nomination. Also, an individual named Peggy Wardlaw also filed in the Republican primary. We were unable to identify her conclusively. At least 16 people have taken a formal step toward running for the seat as a Republican.

CD22: Fort Bend Co. Sheriff Troy Nehls (R) announced he would not run for Congress in 2018. He had been considering challenging U.S. Rep. Pete Olson (R-Humble) in the Republican primary, but he said he would wait until 2020.

CD27: An individual named Eddie Gassman filed in the Republican primary to challenge U.S. Rep. Blake Farenthold (R-Corpus Christi). We were unable to identify him conclusively.

CD29 open: Houston resident Robert Schafranek filed in the Republican primary for the seat being vacated by U.S. Rep. Gene Green (D-Houston). He unsuccessfully sought the 2016 Republican nomination for the seat (41%).

CD32: Longtime television investigative reporter Brett Shipp resigned from WFAA-TV to enter the crowded Democratic primary to challenge U.S. Rep. Pete Sessions (R-Dallas).

©2017 Texas Election Source LLC