The Democrats spent most of Friday bragging about the crowd that Kamala Harris turned out to her event in Houston, Texas. Sure, the “campaign event” was more of a Beyoncé concert than anything else. Sure, there were numerous reports of sustained boos and heckling when Harris finally started speaking; apparently, some Texans may not have appreciated mixing an actual message with the concert they’d showed up for. But there was no denying that it looked great, at least at first glance: And gosh, were Democrats all over this as proof that Texas was going blue — if not in the presidential election…