Well, DUmmie jenmito, I imagine it was because there were a succession of increasingly devastating attacks on US interests overseas for the remainder of his term, with obviously-ineffective responses, including an embarassing international perception of our impotence brought about by his increasingly-transparent fear of putting US ground troops into action anywhere. Of course, there is also the unstated (but well-known in professional circles) fact that the the planning and movement of pieces into position for 9-11 began during Clinton's Presidency, a rock I am sure Blow-Job Bill would not like to flip, if he wants to preserve his "Legacy."