After " Redemption " and the passing of a new constitution in 1876 the GOP became confined largely to areas of abolitionist German " Forty-Eighter " settlement in the Hill Country , and to a few South Texas counties where local Republican bosses could outcompete their Democratic equivalents . The Terrell Election Law created a poll tax disenfranchised the remaining African American voters from 1902 , the vast majority of Mexican-Americans , and also most poor whites . Voter turnout among males over twenty-one fell from over eighty percent to under thirty percent following the poll tax . The period following this disfranchisement , nonetheless , saw a considerable amount of typical " Progressive " reform under Governors James Stephen Hogg and Thomas M. Campbell , whilst despite this progressive faction ceding power in 1906 to the conservatives , Texas proved solid in its support for Woodrow Wilson at the 1912 Democratic National Convention . In the meantime , Texas continued to vote solidly Democratic : between 1904 and 1924 no Republican nominee reached 24 percent of the statewide vote total
1912 Democratic National Convention
1912 Democratic National Convention
1928 United States presidential election in Texas