Andrew Sullivan puts it very succinctly
SEVEN OUT OF TEN: That’s the proportion of Americans supporting the president’s ultimatum to Saddam, according to the Washington Post’s poll. 75 percent: That’s the proportion disapproving of the way in which the United Nations has behaved with regard to this matter. 71 percent support going to war with Iraq. 72 percent believe that the administration has “done enough to try to win support from other countries for taking military action against Iraq.” Those are stunning figures. There may be less public division about this war than any war in recent history.