“Stockman also zeroed in on crucial factor revealed by the poll. While there are now only 15 points separating the two candidates, 29 percent of Texans are still undecided, giving the congressman ample opportunity to catch the senator.”
Will that 29% hold their noses and vote Cornyn? Who knows, but the incumbent is in trouble. Stockman’s campaign has been anemic, but to make up 29 points worth of deficit doing literally nothing is rather remarkable.
Rule of thumb: 80 percent of Undecideds ALWAYS go for challenger(s)