WASHINGTON - Nine months of chaos and casualties in Iraq (news - web sites) since Saddam Hussein (news - web sites)'s capture have taken a heavy toll on American opinion of President Bush (news - web sites)'s decision to go to war. Last December, when Saddam was caught, public support for Bush was 2-to-1 in favor. Now the public is evenly divided on whether the war was the right thing to do or whether it was a mistake. Older people, minorities, people with lower incomes, residents of the Northeast and Catholics are among those increasingly skeptical of the war effort,...