At the Goldman Sachs annual meeting on Friday, I had an unplanned exchange with CEO Lloyd Blankfein about Goldman's support of Jesse Jackson, who was at the meeting and kept popping up to speak. Jackson was acting adversarial toward Blankfein, even though Goldman Sachs is one of Jackson’s largest financial supporters. In hopes of ending this charade, I asked Blankfein to clarify the relationship between Goldman and Jackson as that of donor and recipient. Blankfein said he didn't know if Goldman supported Jackson. I challenged him by asking, "You do not know?" and "You give Jackson's group six-figure sums and...