Enough Republicans moved to TX from other states to keep Beto from becoming a Senator. Born Texans are trending blue due to how the birth rates vary across ethnic groups and high illegal migration. So much for the magic dirt of that state.
As in every other state, the extreme left controls education, and Republicans view controlling public education as somebody else's job. For non-Americans, one of the most truly bizarre things about the Republican Party in the United State is that they view the job of actually staffing and running most government entities as intrinsically belonging to the Democrats. So you can go to the most Republican states in the country, places that vote minimum R+20 every election, and the Democrats will run the state schools, the state universities, the environmental agency, all kinds of stuff.