An ethnic interest group or ethnic lobby, according to Thomas Ambrosio, is an advocacy group (often a foreign policy interest group) established along cultural, ethnic, religious or racial lines by an ethnic group for the purposes of directly or indirectly influencing the foreign policy of their resident country in support of the homeland and/or ethnic kin abroad with which they identify.
The Truman Doctrine was an American foreign policy created to counter Soviet geopolitical expansion during the Cold War.
 It was first announced to Congress by President Harry S. Truman on March 12, 1947 and further developed on July 12, 1948 when he pledged to contain Soviet threats to Greece and Turkey.
 American military force was usually not involved, but Congress appropriated free gifts of financial aid to support the economies and the militaries of Greece and Turkey.
 More generally, the Truman Doctrine implied American support for other nations threatened by Soviet communism.
 The Truman Doctrine became the foundation of American foreign policy, and led, in 1949, to the formation of NATO, a military alliance that is still in effect.
 Historians often use Truman's speech to date the start of the Cold War.
Serge Ricard, a former Fulbright Scholar, is professor of American Civilization at the University of Paris III-Sorbonne Nouvelle.
 Ricard specializes in both American foreign policy and civilization.
 He is co-director with Pierre Melandri of OPEA, the Center for the Study of American Foreign Policy ("Observatoire de la politique étrangère américaine") at the same university.
 Ricard also specializes in the foreign policy of 26th US President, Theodore Roosevelt and serves on the international advisory board of the Roosevelt Study Center in the Netherlands.
 In October, 2007, Ricard was a featured speaker at the Annual Meeting of the Theodore Roosevelt Association in Boston, MA.
The Committee on the Present Danger (CPD) is an American foreign policy interest group.
 Its current stated single goal is "to stiffen American resolve to confront the challenge presented by terrorism and the ideologies that drive it" through "education and advocacy".
 Throughout its three iterations—in the 1950s, the 1970s, and the 2000s (decade), it influenced the Presidential administrations of Harry Truman, Dwight D. Eisenhower, Jimmy Carter, Ronald Reagan, and George W. Bush, and was still active as of 2008 .
Nancy Elisabet Soderberg (born 1958) is an American foreign policy strategist.
 She served President Bill Clinton as Deputy National Security Advisor and as an Ambassador at the United Nations.
 She is currently President and CEO of Soderberg Global Solutions and Director of the Public Service Leadership Program at the University of North Florida in Jacksonville, FL.
 She was appointed by President Obama to serve as Chair of the Public Interest Declassification Board (2011-2014).
 She has also previously served as President of Connect U.S. Fund, as Vice President of the International Crisis Group, and on the Board of the Jacksonville Port Authority.
 She was a senior advisor to Senator Edward M. Kennedy, and worked on four presidential campaigns.
 She is a member of the Council on Foreign Relations.
 She is a regular commentator on national and international television and radio, having appeared on NBC, ABC, CBS, CNN, BBC, Fox, National Public Radio, the Lehrer News Hour, CNN Crossfire, and The Daily Show.
 She is the author of numerous articles on American foreign policy and two books: “The Prosperity Agends” (2008) written with Brian Katulis, and the Superpower Myth (2005).
 In 1984, Soderberg received a Master of Science Degree from Georgetown University's School of Foreign Service, concentrating on development economics and political risk analysis.
 She received her Bachelor of Arts in 1980 from Vanderbilt University.
 It was reported on July 12th, 2017 that Soderberg had filed paperwork to run for Congress in the 2018 Midterm Elections in Florida's 6th Congressional District, as a Democrat .
James M. Lindsay (born November 29, 1959, Winchester, Massachusetts), is the Senior Vice President, Director of Studies, and Maurice R. Greenberg Chair at the Council on Foreign Relations (CFR) and a leading authority on U.S. foreign policy.
 He is also the award-winning coauthor of "America Unbound: The Bush Revolution in Foreign Policy" and former Director for Global Issues and Multilateral Affairs at the National Security Council.
 In 2008, he was the principal author of a Department of Defense funded $7.6 million Minerva Research Initiative grant entitled "Climate Change, State Stability, and Political Risk in Africa."
 He is the author of a CFR blog on American foreign policy, The Water's Edge.
Ronald Wilson Reagan ( ; February 6, 1911 – June 5, 2004) was an American statesman and actor who served as the 40th President of the United States from 1981 to 1989.
 Before his presidency, he was the 33rd Governor of California, from 1967 to 1975, after a career as a Hollywood actor and union leader.
Dean Gooderham Acheson (pronounced ; April 11, 1893 – October 12, 1971) was an American statesman and lawyer.
 As United States Secretary of State in the administration of President Harry S. Truman from 1949 to 1953, he played a central role in defining American foreign policy during the Cold War.
 Acheson helped design the Marshall Plan and was a key player in the development of the Truman Doctrine and creation of the North Atlantic Treaty Organization.
George D. Schwab (born November 25, 1931) is an American political scientist, editor and academic.
 He was the president of the National Committee on American Foreign Policy, an American non-partisan foreign policy think tank.
 He co-founded the organization in 1974 and served as its president from 1993 to 2015, and was the editor of its bimonthly journal, "American Foreign Policy Interests".
A foreign policy interest group, according to Thomas Ambrosio, is a domestic advocacy group which seeks to directly or indirectly influence their government's foreign policy.

Question: The committee on the Present Danger is an American foreign policy interest group that influenced the administration of an American statesman and actor who served as what number president of the United States?
Answer: 40th