SD 18 · Incumbent: Lois Kolkhorst
State Senator, District 18
The desk’s rating
Safe Republican
Democrat
Erica Gillum
Won D primary unopposed
- Cash on hand
- None
- Raised
- $1K
- Spent
- $1K

Republican · Incumbent
Lois Kolkhorst
Seeking reelection; ran unopposed in R primary
- Cash on hand
- $3.16M
- Raised
- $103K
- Spent
- $128K
Money
Lois Kolkhorst holds a narrow cash edge.
Cash on hand as reported in each campaign’s latest filing (as of Dec 2025 and Jan 2026). Full finance records
The desk’s notes
Lois Kolkhorst's SD-18 touches only the far northwestern corner of Harris County (Cypress/Katy area). D challenger Erica Gillum. Safe Republican district. All-women matchup.
More in Texas Legislature
All texas legislature racesState Representative, District 134

Ann Johnson
Inc.$601K
Mike Michna
$748
Share of cash on hand
Johnson flipped this seat from the GOP in 2020 and has defended it every cycle since.
Last general, 2024
State Representative, District 138
Tyler Smith
$14K

Lacey Hull
Inc.$379K
Share of cash on hand
Last general, 2024
State Representative, District 144

Mary Ann Perez
Inc.$242K
David Flores
No cash
Share of cash on hand
Last general, 2020