** FILE ** President Bush, left, waves as he departs the White House in Washington, for a trip to Lexington, Va. in this April 17, 2002 file photo. Walking with the president, from second from left are, Press then-Secretary Ari Fleischer, then-National Security Adviser Condoleezza Rice, White House Chief of Staff Andrew Card and Senior Adviser Karl Rove. Rove, President Bush's close friend and chief political strategist, announced Monday he will leave the White House at the end of August, joining a lengthening line of senior officials heading for the exits in the final 1 years of the administration.(AP Photo/Doug Mills, File)