Wall Street remains confounded by the stunning turn of events in the saga of Kathy Ruemmler, the former Obama chief White House counsel and current Goldman Sachs general counsel, who submitted her resignation at the end of the day on Thursday. Of course, this was a complete reversal from the signals of support that Goldman had been sending to the market. Not only was Ruemmler at the recent partner meeting in Florida, but she entered the Miami venue alongside C.E.O. David Solomon. In fact, Ruemmler told me this morning that she’d started this past week determined to fight the mob, referring to the media circus surrounding her professional dealings with Jeffrey Epstein, who’d helped source deals for her during her rainmaking stint at Latham & Watkins. She was resolute.