Congress ignored President George W. Bush's certain veto and sent him legislation ordering troops out of Iraq and underscored the action with a Capitol ceremony on the fourth anniversary of Bush's "Mission Accomplished" speech on the war. In the span of about two hours Tuesday, Bush received, vetoed and publicly denounced the legislation. Democrats, who had staged a dramatic and unusual bill-signing ceremony of their own, headed back to the television cameras to chide Bush for rejecting it. "The president may be content with keeping our troops mired in the middle of an open-ended civil war, but we're not and neither are most Americans," said the Senate majority leader, Harry Reid. Even as they urged the president to change his mind and sign the bill Tuesday, Democratic leaders quietly considered what might be included or kept out of their next version.