What this means isn't yet definitive. But here's what these three Texas counties have in common:
— Brandon Friedman (@BFriedmanDC) October 26, 2020
1. All are suburbs of heavily Democratic metro area (Dallas and Austin)
2. Their populations have exploded
3. They voted for Trump in 2016, but shifted dramatically left in 2018 https://t.co/AoZC3uW02o