"It needs to be narrowed," said Gore, adding that Congress should urge Bush to go back to the U.N. Security Council and secure the "broadest possible international support" for a regime change in Iraq.
Meanwhile, Gore said, "Bush should not allow anything to distract us from the mission of avenging the murder of 3,000 Americans."
Also Monday, former President Carter criticized Bush's stance on Iraq, saying military action without the blessing of the United Nations would be a grave mistake that would put America in danger.
"I'm quite concerned" about the White House's pursuit of Saddam Hussein without the support of many of its allies from the Persian Gulf War, Carter said after a speech at the University of Virginia.
"It is a radical departure from traditions that have shaped our nation's policy by Democratic and Republican presidents for more than 50 years," Carter told reporters.