an Entity references as follows:
John E. "Jack" Potter (born 1956) is the president and CEO of the Metropolitan Washington Airports Authority since July 18, 2011. He is the former United States Postmaster General and CEO of the United States Postal Service (USPS), having become the 72nd postmaster general on June 1, 2001. Potter is the second longest-serving postmaster general, following Gideon Granger.