Tex. Elec. Code § 273.024 : ELECTION CODE — MISCELLANEOUS PROVISIONS — CRIMINAL INVESTIGATION AND OTHER ENFORCEMENT PROCEEDINGS — PROSECUTION BY ATTORNEY GENERAL — Venue

An offense under this subchapter may be prosecuted in the county in which the offense was committed or an adjoining county. If the offense is committed in connection with a statewide election, the offense may be prosecuted in the county in which the offense was committed, an adjoining county, or Travis County.