I had to look up the couch story:
According to a now-deleted tweet as well as several other tweets, in his 2016 memoir Hillbilly Elegy, Vance admitted to fucking an inside-out latex glove that had been placed between two couch cushions. While the original deleted tweet played it for laughs, describing him as potentially the first VP pick to have admitted to such an act, others seem genuinely concerned by it, questioning whether the confession invalidates his commitment to family values.