Days before the March 20 invasion, a "USA Today"/CNN/Gallup Poll found support for the war was related to UN approval. Nearly six in 10 said they were ready for such an invasion "in the next week or two." But that support dropped off if the U.N. backing was not first obtained. If the U.N. Security Council were to reject a resolution paving the way for military action, only 54% of Americans favored a U.S. invasion. And if the Bush administration did not seek a final Security Council vote, support for a war dropped to 47%.