President not expected to return to city after 5-year absence on upcoming trip to California. Washington -- Presidential visits to San Francisco have been a tradition since Rutherford Hayes lunched at the Cliff House in 1880. Presidents arrived by stagecoach and jet. One was shot at. Another died. In all, 20 presidents have visited the city, including every chief executive for the past 75 years. Except George W. Bush. Now in the fifth year of his presidency, Bush has yet to set a foot in the city that was home to his childhood baseball idol, Willie Mays, and shows no...