From the latest polling: After initially expressing robust backing for the war, the public is now evenly divided over whether the United States military should stay for as long as it takes to stabilize Iraq or pull out as soon as possible, the poll showed. Asked whether the United States had done the right thing in taking military action against Iraq, 47 percent of respondents said it had, down from 58 percent a month earlier and 63 percent in December, just after American forces captured Saddam Hussein. Forty-six percent said the United States should have stayed out of Iraq, up from 37 percent last month and 31 percent in December. [Bush's approval rating] now stands at 46 percent, the lowest level of his presidency in The Times/CBS News Poll, down from 71 percent last March and a high of 89 percent just after the terrorist attacks on Sept. 11, 2001.