As The New York Times reported: The video captured a moment of jubilation familiar to any college sports fan. A sea of burnt-orange-clad students erupted in whoops and hollers after the Texas Longhorns’ game-winning touchdown on Saturday night, jumping up and down, hugging one another, tossing drinks in the air. By Sunday, the scene had become a powder keg for Texas Republicans, after the G.O.P. nominee for a statewide office captioned a screens…