A person who is affiliated with a political party is ineligible to become affiliated with another political party during the same voting year.
Tex. Elec. Code § 162.012
INELIGIBILITY TO AFFILIATE WITH ANOTHER PARTY
Acts 1985, 69th Leg., ch. 211, Sec. 1, eff
Official source: Texas Constitution and Statutes. Reproduced from public-domain Texas statutes; confirm against the official source for the current text. Not legal advice.