- The Texas Senate currently has 20 Republicans and 11 Democrats.
- 16 incumbents are not up for re-election until 2020.
- 15 of the 31 Senate districts are up for election in 2018.
- One incumbent is not seeking re-election: Van Taylor (R-Plano) in District 8 – Angela Paxton, wife of Attorney General Ken Paxton won the Republican Primary in Senate District 8.
- One incumbent Senate member was defeated in the Primary – Senator Craig Estes in District 30.
- The Texas House has 94 Republicans and 55 Democrats.
- One Republican resigned and his seat was vacant – Representative Leighton Schubert of Caldwell (District 13). Grimes County Judge Ben Leman won the Special Election to fill his seat.
- All 150 members of the Texas House are up for re-election in 2018.
- 13 Incumbent Members of the Texas House did Not Seeking Re-election:
Cindy Burkett (R-Sunnyvale) in District 113,
Byron Cook (R-Corsicana) in District 8,
Pat Fallon (R-Frisco) in District 106,
Helen Giddings (D-Dallas) in District 109,
Larry Gonzales (R-Round Rock) in District 52,
Lance Gooden (R-Terrell) in District 4,
Jason Isaac (R-Dripping Springs) in District 45,
Mark Keough (R-The Woodlands) in District 15,
Jodie Laubenberg (R-Wylie) in District 89,
Larry Phillips (R-Sherman) in District 62,
Kevin Roberts (R-Houston) in District 126.
Leighton Schubert (R-Caldwell) in District 13, and
Joe Straus (R-San Antonio) in District 121.
- 6 incumbents were defeated in the Primary:
Wayne Faircloth (R-Dickinson) in District 23
Dawnna Dukes (D-Austin) in District 46
Roberto Alonzo (D-Dallas) in District 104
Jason Villalba (R-Dallas) in District 114
Diana Arevalo (D-San Antonio) in District 116
Tomas Uresti (D-San Antonio) in District 118
- 2 incumbents lost in the run-off election:
Rene Oliveira (D-Brownsville) in District 37
Scott Cosper (R-Killeen) in District 54
The General election is Tuesday, November 6, 2018.