Jasmine Crockett didn’t simply lose her Senate primary. She staged a slow-motion meltdown on the way out the door, complete with preemptive claims of cheating and “disenfranchisement,” long before the votes were even done being counted. Early Tuesday evening, while ballots were still being tallied across 254 Texas counties, Crockett started laying the groundwork for an excuse. She told supporters there had been “a lot of confusion” in Dallas County. She insisted that “people have been disenfranchised,” blaming Republicans for supposedly targeting Dallas and hinting darkly at votes that might not count. Then she left her own watch party early...