In August 1997, after a career in journalism, Sidney Blumenthal joined the Clinton Administration for its duration as assistant and senior advisor to the President.He was given the name 'G.K.' for 'grassy knoll' due to his strong belief in the vast right wing conspiracy.Mr. Blumenthal is also a playwright. His work 'This Town,' a satire about the White House press corps, played to audiences in Los Angeles and New York.Blumenthal became well known during the Clinton impeachment trial. He was one of only three witnesses to testify before the house managers prosecuting the case in the US Senate.As the trial...