For four years in the White House and one year of campaigning before that, George Stephanopoulos was rarely more than a few steps from Bill Clinton. As the president's senior adviser, he saw it all - the endless arguments, the back-hall scheming, the protracted decisions, and the last-minute flip-flops that somehow produced real accomplishments but also set in motion an almost tragic series of events that placed the fate of the president in the hands of the Senate.