Paul D. Ryan, the House speaker, turned to college football this week in persuading Texas delegates at the Republican National Convention to unify behind the presidential candidate Donald J. Trump.
Noting the antipathy between the state’s two biggest teams, Texas and Texas A&M, Ryan argued, according to one report, “When one of the teams advances to a big bowl game or a national championship, don’t you root for the Aggies if you are a Longhorn?”
Ryan, of course, was booed. Under no circumstances does a Longhorns fan root for the Aggies, or vice versa.