Reagan Doctrine legal barriers prohibiting private organizations and citizens from supporting these resistance movements. Within the Reagan administration, the doctrine was quickly embraced by nearly all of Reagan's top national security and foreign policy officials, including Defense Secretary Caspar Weinberger, UN Ambassador Jeane Kirkpatrick, and a series of Reagan National Security advisers including John Poindexter, Frank Carlucci, and Colin Powell. Reagan himself was a vocal proponent of the policy. Seeking to expand Congressional support for the doctrine in the 1985 State of the Union Address in February 1985, Reagan said: "We must not break faith with those who are risking their lives...on
United States Secretary of Defense 2,595 days. Combining his two non-sequential services as Secretary of Defense, the second longest serving is Donald Rumsfeld, who served just ten days fewer than McNamara. The shortest-serving Secretary of Defense is Elliot Richardson, who was quickly moved to US Attorney General after 114 days due to resignations during the Watergate Scandal (not counting Deputy Secretary of Defense William P. Clements and William Howard Taft IV, who each served a few weeks as temporary/acting Secretary of Defense). The Secretary of Defense is sixth in the presidential line of succession, following the Secretary of the Treasury and preceding the Attorney General.