 Records released on March 23 showed that on his November 27 schedule "he attended an hour-long meeting at which, aides said, he approved a detailed plan for executing the purge".Senate Judiciary Committee Chairman Patrick Leahy stated that Congress has the authority to subpoena Justice Department and White House officials including chief political advisor to the president Karl Rove and former White House counsel Harriet Miers.On March 20, President Bush declared in a press conference that his aides would not testify under oath on the matter if subpoenaed by Congress.