Under Texas election law, one is automatically a "member" of the political party in whose primary and/or runoff election he participates. Only Democrats and Republicans in Texas hold primaries. He remains a "member" of that party for two years until the next regular primary or runoff. The only way he can "change" his party is to wait two years, then skip a primary and become an "unaffiliated" voter or to vote in the other party's primary and in effect "change" his partisan registration. He cannot switch from one party's primary and vote in the other party's immediate runoff election.<ref>Lyle C. Brown et al, ''Practicing Texas Politics'', 13th ed. (Houghton Mifflin, 2008), pp. 192–195.</ref> | Under Texas election law, one is automatically a "member" of the political party in whose primary and/or runoff election he participates. Only Democrats and Republicans in Texas hold primaries. He remains a "member" of that party for two years until the next regular primary or runoff. The only way he can "change" his party is to wait two years, then skip a primary and become an "unaffiliated" voter or to vote in the other party's primary and in effect "change" his partisan registration. He cannot switch from one party's primary and vote in the other party's immediate runoff election.<ref>Lyle C. Brown et al, ''Practicing Texas Politics'', 13th ed. (Houghton Mifflin, 2008), pp. 192–195.</ref> |