Question: The Tower Commission had a National Security Advisor who had served in what previous capacity?

full_context: Document 1: Brent Scowcroft: Brent Scowcroft ( ; born March 19, 1925) is a retired United States Air Force lieutenant general who was the United States National Security Advisor under U.S. Presidents Gerald Ford and George H. W. Bush. He also served as Military Assistant to President Richard Nixon and as Deputy Assistant to the President for National Security Affairs in the Nixon and Ford administrations. He served as Chairman of the President's Foreign Intelligence Advisory Board under President George W. Bush from 2001 to 2005 and assisted President Barack Obama in choosing his national security team.
Document 2: Timeline of the Iran–Contra affair: The Iran–Contra affair was a political scandal in the United States that came to light in November 1986. During the Reagan administration, senior administration officials secretly facilitated the sale of arms to Iran, the subject of an arms embargo. Some U.S. officials also hoped that the arms sales would secure the release of hostages and allow U.S. intelligence agencies to fund the Nicaraguan Contras. Under the Boland Amendment, further funding of the Contras by the government had been prohibited by Congress.
Document 3: Stephen Hadley: Stephen John Hadley (born February 13, 1947) was the 21st U.S. Assistant to the President for National Security Affairs (commonly referred as National Security Advisor), serving under President George W. Bush during the second term of his administration. Hadley was Deputy National Security Advisor during the Bush's first term. Before that Hadley served in a variety of capacities in the defense and national security fields. He has also worked as a lawyer and consultant in private practice.
Document 4: Fred F. Fielding: Fred Fisher Fielding (born March 21, 1939) is an American lawyer. He held the office of White House Counsel for US Presidents Ronald Reagan and George W. Bush in addition to serving as an Associate and Deputy White House Counsel for Richard Nixon under John Dean. Fielding was also of counsel to the presidential transition of Donald Trump.
Document 5: Meese Report: The final report of the Attorney General's Commission on Pornography (usually referred to as (the) Meese Report, for U.S. Attorney General Edwin Meese) is the result of a comprehensive investigation into pornography ordered by U.S. President Ronald Reagan. It was published in July 1986 and contains 1,960 pages.
Document 6: Iran–Contra affair: The Iran–Contra affair (Persian: ماجراي ایران-کنترا‎ ‎ , Spanish: "caso Irán-Contra" ), also referred to as Irangate, Contragate or the Iran–Contra scandal, was a political scandal in the United States that occurred during the second term of the Reagan Administration. Senior administration officials secretly facilitated the sale of arms to Iran, which was the subject of an arms embargo. They hoped, thereby, to fund the Contras in Nicaragua while at the same time negotiating the release of several U.S. hostages. Under the Boland Amendment, further funding of the Contras by the government had been prohibited by Congress.
Document 7: Commission on Foreign Economic Policy: The U.S. President's Commission on Foreign Economic Policy (the Randall Commission) was established on August 7, 1953 by Public Law 215 entitled "Trade Agreements Extension Act of 1953" which extended the Trade Agreements Extension Act of 1951 for one year. On April 7, 1953 President Dwight D. Eisenhower requested that Congress extend for one year the Reciprocal Trade Agreements Act, a measure which had originally been passed in 1934. Under this act and its subsequent extensions, the President was authorized to negotiate agreements with other countries for tariff reduction. In his message of April 7, the President called for a commission to study U.S. foreign economic policy in general. Section 301 of this Act provided for a bipartisan commission which consisted of seventeen members: seven appointed by the President, five appointed from the Senate by the Vice President, and five from the United States House of Representatives by the Speaker. President Eisenhower appointed Clarence B. Randall, Chairman of the Board of Inland Steel Company, as Chairman of the Commission. The Commission was directed to examine and report on the subjects of international trade, foreign economic policy, and the trade aspects of national security and total foreign policy. It was to recommend appropriate policies, measures, and practices, based on its findings, in a report to Congress.
Document 8: National Security Advisor (United States): The Assistant to the President for National Security Affairs (APNSA), commonly referred to as the National Security Advisor (NSA) or at times informally termed the NSC advisor, is a senior aide in the Executive Office of the President, based at the West Wing of the White House, who serves as the chief in-house advisor to the President of the United States on national security issues. The National Security Advisor is appointed by the President and does not require confirmation by the Senate, but an appointment of a three or four-star general to the role requires Senate reconfirmation of military rank.
Document 9: Tower Commission: The Tower Commission was commissioned on 1 December 1986 by U.S. President Ronald Reagan in response to the Iran Contra scandal. Reagan appointed Republican and former Senator John Tower of Texas, former Secretary of State Edmund Muskie, and former National Security Advisor Brent Scowcroft.
Document 10: Tom Bossert: Thomas P. "Tom" Bossert (born March 25, 1975) is an American lawyer and Republican White House staffer, currently serving President Donald Trump as Homeland Security Advisor. Immediately before, he was fellow at the Atlantic Council and prior to that he served as Deputy Homeland Security Advisor to President George W. Bush. In that capacity, he co-authored the 2007 National Strategy for Homeland Security. Prior to that, Bossert held positions in the Federal Emergency Management Agency, the Small Business Administration, the Office of the Independent Counsel, and the House of Representatives. He also was appointed as the Director of Infrastructure Protection under Bush, overseeing the security of critical U.S. infrastructure, a post he held for two years. Following that, he was appointed the Senior Director for Preparedness Policy within the Executive Office of the President.
Document 11: Michael Flynn: Michael Thomas "Mike" Flynn (born December 1958) is a retired United States Army Lieutenant General, who served in the Army for 33 years until 2014. Flynn's military career included a key role in shaping U.S. counterterrorism strategy and dismantling insurgent networks in Afghanistan and Iraq, and he was given numerous combat arms, conventional, and special operations senior intelligence assignments. He was appointed by President Barack Obama as the eighteenth director of the Defense Intelligence Agency, serving from July 2012 to his retirement from the military in August 2014. After leaving the military, he established Flynn Intel Group which has provided intelligence services for businesses and governments, including ones in Turkey. Flynn also briefly served as the twenty-fifth National Security Advisor for President Donald Trump, from January 20 to February 13, 2017.
Document 12: Jimmy Carter judicial appointment controversies: During President Jimmy Carter's presidency, he nominated four people for four different federal appellate judgeships who were not processed by the Democratic-controlled Senate Judiciary Committee before Carter's presidency ended. None of the four nominees were renominated by Carter's successor, President Ronald Reagan. Three of the nominees who were not processed (Eugene Nickerson, Nicholas Bua and Howard F. Sachs) were nominated after July 1, 1980, the traditional start date of the unofficial Thurmond Rule during a presidential election year. All four seats eventually were filled by appointees of President Ronald Reagan.
Document 13: George H. W. Bush: George Herbert Walker Bush (born June 12, 1924) is an American politician who was the 41st President of the United States from 1989 to 1993 and the 43rd Vice President of the United States from 1981 to 1989. A member of the Republican Party, he was previously a congressman, ambassador, and Director of Central Intelligence. He is the oldest living former President and Vice President. Previously known as simply "George Bush", since 2001, Bush has often been referred to as "George H. W. Bush", "Bush 41", "Bush the Elder", or "George Bush Senior" to distinguish him from his eldest son, George W. Bush, the 43rd President of the United States.
Document 14: House October Surprise Task Force: The House October Surprise Task Force (formally "Task Force of the Committee on Foreign Affairs to Investigate Certain Allegations Concerning the Holding of Americans as Hostages by Iran in 1980") was a task force instituted by the United States House of Representatives in 1992 to examine the October Surprise allegations: that during the 1980 United States presidential election the Reagan campaign had sought to negotiate a solution to the Iran hostage crisis in competition to the US government of Jimmy Carter, in order to prevent the successful resolution of the crisis giving Carter an electoral boost. Following the publication of the report in January 1993, Task Force chairman Rep. Lee H. Hamilton published an editorial in "The New York Times" summarising the Task Force conclusion that "there was virtually no credible evidence to support the accusations."
Document 15: Science Advisor to the President: The Science Advisor to the President is an individual charged with providing advisory opinions and analysis on science and technology matters to the President of the United States. The first Science Advisor, Vannevar Bush, chairman of the Office of Scientific Research and Development, served Presidents Franklin Delano Roosevelt and Harry S. Truman from 1941 to 1951. President Truman created the President's Science Advisory Committee in 1951, establishing the chairman of this committee as the President's Science Advisor. This committee continued under Presidents Dwight D. Eisenhower, John F. Kennedy, Lyndon B. Johnson, and Richard M. Nixon until 1973. Nixon terminated the committee rather than appointing a replacement for his advisor who had resigned. The US Congress established the Office of Science and Technology Policy in 1976, re-establishing Presidential Science Advisors to the present day.
ground_truth: United States Air Force lieutenant general