After my boss, Washington, D.C., mayor Adrian Fenty, lost his primary in September, I was stunned. I had never imagined he wouldn't win the contest, given the progress that was visible throughout the city--the new recreation centers, the turnaround of once struggling neighborhoods, and, yes, the improvements in the schools. Three and a half years ago, when I first met with Fenty about becoming chancellor of the D.C. public-school system, I had warned him that he wouldn't want to hire me. If we did the job right for the city's children, I told him, it would upset the status quo--I was sure I would be a political problem. But Fenty was adamant. He said he would back me--and my changes--100 percent. He never wavered, and I convinced myself the public would see the progress and want it to continue. But now I have no doubt this cost him the election.