Public support for the air war in Yugoslavia is softening, and a majority of Americans believe the United States and its NATO allies should negotiate a settlement with Yugoslav President Slobodan Milosevic to end the fighting. This according to a new Washington Post/ABC News poll. The poll found, in public perception of his handling of the Kosovo crisis, Clinton has suffered somewhat in recent weeks. Barely half of those interviewed say they approve of the way he’s handling the situation, down from 56 percent three weeks ago. The proportion of Americans opposed to Clinton’s management of the crisis has increased to 41 percent in three weeks.