The Republican Party's campaign platform in the 2000 election called for "full implementation" of the Iraq Liberation Act and removal of Saddam Hussein; and key Bush advisers, including Vice President Dick Cheney, Defense Secretary Donald Rumsfeld, and Rumsfeld's Deputy Paul Wolfowitz, were longstanding advocates of invading Iraq, and contributed to a September 2000 report from the Project for the New American Century that argued for using an invasion of Iraq as a means for the US to "play a more permanent role in Gulf regional security..." After leaving the administration, former Bush treasury secretary Paul O'Neill said that "contingency planning" for an attack on Iraq was planned since the inauguration and that the first National Security Council meeting involved discussion of an invasion. Retired Army Gen. Hugh Shelton, former chairman of the Joint Chiefs of Staff, said he saw nothing to indicate the United States was close to attacking Iraq early in Bush's term.