Texas Statutes
Chapter 162 - Regulating Participation in Party Affairs
Section 162.002. Eligibility to Affiliate

Sec. 162.002. ELIGIBILITY TO AFFILIATE. To be eligible to affiliate with a political party, a person must be:
(1) a registered voter; or
(2) eligible to vote a limited ballot at the time of affiliating.
Acts 1985, 69th Leg., ch. 211, Sec. 1, eff. Jan. 1, 1986.