A congressional investigation of the volunteer organization AmeriCorps contains charges that D.C. schools chief Michelle Rhee handled "damage control" after allegations of sexual misconduct against her now fiance, Sacramento Mayor Kevin Johnson, a former NBA star and a prominent ally of President Obama, The Washington Examiner has learned. The charges are contained in a report prepared by Sen. Charles Grassley, the ranking Republican on the Senate Finance Committee, and Rep. Darrell Issa, ranking Republican on the House Committee on Oversight and Government Reform. The investigation began after the AmeriCorps inspector general, Gerald Walpin, received reports that Johnson had misused some...