The special counsel has led the highest-profile probe in two decades with nary a public appearance or comment.
Sanders is here to build support for his campaign nearly a year in advance of California's 2020 primary.
Workers are planning to strike Monday, refusing to drive for both Uber and Lyft in a move they hope will mark an early step in a broader push for higher wages.
Stories of wealthy parents allegedly paying large bribes to buy their kids seats in top-tier universities have stoked disgust. But prosecutors cannot bring a case on outrage alone.