Anything Texas does short of explicitly giving voter ID cards to illegal aliens will be struck down. Democrats are still pissed that Texas switched from D to R sometime back in the late 60's or 70's. (most were very conservative Southern Democrats that bore no resemblance to today's DNC, except for Travis County) And they rely on voter fraud.
I am not sure of the exact year, but the first R governor wasn't until the 80's and things didn't really swing until Gov. Ann Richards was voted out and all the crap surrounding the Clinton administration really moved things to the point that ALL statewide offices are held by R's. In the 90's, the national Dem Party was going full Leftist. The mythical "moderate democrat" pretty much ceased to exist (at least here).
Now there are people that still vote Dem in local elections. I think the small town I grew up in is that way even still. But most of those people will vote R in statewide and national elections.
Side Note: I don't think Ann Richards would have won the governors office the first time, but a man named Clayton Williams was running against her. He decided to make a joking comment about rape to the point that if it is inevitable then women should just lie back and take it. I think it was not intended to be recorded, but a microphone caught it and he tanked.