I read once that native Texans supported Beto over Cruz in the Senate Election. What carried Cruz to victory was a greater number of "imports" in Texas that supported Cruz.
Anecdotally that is absolutely not true!
Austin and the surrounding area had over 300 people a day moving into the area, and they have changed where I live from a very conservative county to a very liberal one. Most are Californians (house rich from real estate sales in CA) that have bid up houses to the point that locals can no longer afford rents going up 50%+ a year.