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The Harris County Project

SD 18 · Incumbent: Lois Kolkhorst

State Senator, District 18

The desk’s rating

Safe Republican

Safe DToss-upSafe R

Democrat

Erica Gillum

Won D primary unopposed

Cash on hand
None
Raised
$1K
Spent
$1K
Filing as of Dec 2025Source filing

Republican · Incumbent

Lois Kolkhorst

Seeking reelection; ran unopposed in R primary

Cash on hand
$3.16M
Raised
$103K
Spent
$128K

Money

Erica Gillum
None
Lois Kolkhorst
$3.16M

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.

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