Question: Robert L. DuPont, is a national leader in marijuana policy, drug policy and treatment, he was second White House Drug Czar from 1973 to 1977 under former Presidents Richard Nixon and which American politician who served as the 38th President of the United States from August 1974 to January 1977?

full_context: Document 1: Gerald Ford: Gerald Rudolph Ford Jr. (born Leslie Lynch King Jr.; July 14, 1913 – December 26, 2006) was an American politician who served as the 38th President of the United States from August 1974 to January 1977, following the resignation of Richard Nixon. Prior to this he served eight months as the 40th Vice President of the United States, following the resignation of Spiro Agnew. He was the first person appointed to the vice presidency under the terms of the 25th Amendment, and consequently the only person to have served as both Vice President and President of the United States without being elected to executive office. Before his appointment to the vice presidency, Ford served 25 years as U.S. Representative from Michigan's 5th congressional district, the final nine of them as the House Minority Leader.
Document 2: United States vice presidential selection, 1974: In 1974, Republican President Richard Nixon was forced to resign following the Watergate Scandal. Vice President Gerald Ford ascended to the presidency, leaving the office of vice president vacant. Under the terms of the 25th Amendment, a vice presidential vacancy is filled when the president nominates a candidate who is confirmed by both houses of Congress. On August 20, 1974, Ford announced his nomination of former New York Governor Nelson Rockefeller to fill the vacancy. Ford also considered picking Tennessee Senator Howard Baker and former Republican National Committee Chairman George H.W. Bush. Rockefeller was generally considered to be a liberal Republican, and Ford decided that picking Rockefeller would help his candidacy gain support in the 1976 presidential election. The confirmation hearings for Rockefeller lasted for months, but Rockefeller was sworn in as the 41st Vice President of the United States on December 19, 1974. Due to the pressure on Ford by the party conservatives, Rockefeller was ultimately passed over for the 1976 ticket, and Ford instead chose Bob Dole as his running mate. Ford, however, regreted this move later.
Document 3: Richard Nixon: Richard Milhous Nixon (January 9, 1913 – April 22, 1994) was the 37th President of the United States from 1969 until 1974, when he resigned from office, the only U.S. president to do so. He had previously served as the 36th Vice President of the United States from 1953 to 1961, and prior to that as a U.S. Representative and also Senator from California.
Document 4: Robert Warshaw: Robert S. Warshaw is an American law enforcement official and former Associate Director of the White House Office of National Drug Control Policy, commonly referred to as the "deputy drug czar." Warshaw, appointed to the position in 1998, served under ONDCP Director Barry McCaffrey. He previously served as Chief of the Rochester Police Department. Upon being appointed to the ONDCP, Warshaw was succeeded as police chief by Robert Duffy, later Mayor of Rochester and currently lieutenant governor of New York State.
Document 5: Jerome Jaffe: Jerome H. Jaffe was the Drug Czar under the administration of President of the United States Richard Nixon.
Document 6: War on Drugs: The War on Drugs is an American term usually applied to the United States government's campaign of prohibition of drugs, military aid, and military intervention, with the stated aim being to reduce the illegal drug trade. This initiative includes a set of drug policies that are intended to discourage the production, distribution, and consumption of psychoactive drugs that the participating governments and the UN have made illegal. The term was popularized by the media shortly after a press conference given on June 18, 1971, by United States President Richard Nixon—the day after publication of a special message from President Nixon to the Congress on Drug Abuse Prevention and Control—during which he declared drug abuse "public enemy number one". That message to the Congress included text about devoting more federal resources to the "prevention of new addicts, and the rehabilitation of those who are addicted", but that part did not receive the same public attention as the term "war on drugs". However, two years prior to this, Nixon had formally declared a "war on drugs" that would be directed toward eradication, interdiction, and incarceration. Today, the Drug Policy Alliance, which advocates for an end to the War on Drugs, estimates that the United States spends $51 billion annually on these initiatives.
Document 7: Drug czar: Drug Czar is an informal name for the person who directs drug-control policies in the United States, following the U.S. use of the 'czar' term. The 'drug czar' title was first published in a 1982 news story by United Press International which reported that “Senators... voted 62–34 to establish a ‘drug czar’ who would have overall responsibility for U.S. drug policy.” Since then, several "ad hoc" executive positions in both the United States and United Kingdom have been established which have been subsequently referred to in this manner.
Document 8: Robert DuPont: Robert L. DuPont (born March 25, 1936 in Toledo, Ohio) is a national leader in marijuana policy, drug policy and treatment. He was the first Director of the National Institute on Drug Abuse (NIDA) from 1973 to 1978 and was the second White House Drug Czar from 1973 to 1977 under former Presidents Richard Nixon and Gerald Ford. In 1978 Dr. DuPont became the founding President of the Institute for Behavior and Health, Inc. In 1982 he and Peter B. Bensinger founded Bensinger, DuPont & Associates, a national consulting firm.
Document 9: Richard Nixon: Richard Milhous Nixon (January 9, 1913 – April 22, 1994) was the 37th President of the United States from 1969 until 1974, when he resigned from office, the only U.S. president to do so. He had previously served as the 36th Vice President of the United States from 1953 to 1961, and prior to that as a U.S. Representative and also Senator from California.
Document 10: United States vice presidential selection, 1973: In 1973, Republican Vice President Spiro Agnew was forced to resign following a controversy over his personal taxes. Under the terms of the 25th Amendment, a vice presidential vacancy is filled when the president nominates a candidate who is confirmed by both houses of Congress. Republican President Richard Nixon thus had the task of selecting a vice president who could receive the majority support of both houses of Congress. Nixon considered selecting former Texas Governor John Connally, New York Governor Nelson Rockefeller, and California Governor Ronald Reagan. However, Nixon settled on House Minority Leader Gerald Ford of Michigan, who was popular among the members of Congress and who was good friends with Nixon. Ford won the approval of both houses by huge margins, and was sworn in as the 40th Vice President of the United States on December 6, 1973. In 1974, Ford ascended to the presidency after the Watergate scandal led to the resignation of President Nixon.
Document 11: John P. Walters: John P. Walters (born February 8, 1952) is the former Director of the White House Office of National Drug Control Policy (ONDCP). He held that position from December 7, 2001 to January 20, 2009. As the nation's "Drug Czar," Walters coordinated all aspects of federal anti-drug policies and spending.
Document 12: Eric J. Nestler: Eric J. Nestler, M.D., Ph.D., is the Dean for Academic and Scientific Affairs and Director of the Friedman Brain Institute at the Icahn School of Medicine at Mount Sinai in New York. His focus in neuropsychopharmacology concentrates on forming a molecular approach to psychiatry and furthering the understanding of the molecular basis of both depression and drug addiction, using animal models to study the way drug use or stress affects the brain. His addiction research largely centers around ΔFosB (a master control protein that induces addiction) and associated epigenetic remodeling in the medium spiny neurons of the nucleus accumbens.
Document 13: George Koob: George F. Koob, (1947- ) is a Chevalier, Professor and former Chair of the Committee on the Neurobiology of Addictive Disorders at The Scripps Research Institute and Adjunct Professor of Psychology, Psychiatry, and Skaggs School of Pharmacy and Pharmaceutical Sciences at the University of California, San Diego. In 2014 he became the director of the National Institute on Alcohol Abuse and Alcoholism.
Document 14: Timeline of the presidency of Gerald Ford: The presidency of Gerald Ford began on August 9, 1974, when Gerald Ford became President of the United States, and ended on January 20, 1977, a span of days. Ford, the 38th United States president, succeeded Richard Nixon, who had resigned from office. Prior to this he was the 40th Vice President of the United States, serving from 1973 until President Richard Nixon's resignation in 1974. He was the first person appointed to the vice presidency under the terms of the Twenty-fifth Amendment to the United States Constitution, following the resignation of Vice President Spiro Agnew on October 10, 1973. Ford has the distinction of being the first, and to date the only person to have served as both vice president and president without being elected to either office.
Document 15: Gerald Ford: Gerald Rudolph Ford Jr. (born Leslie Lynch King Jr.; July 14, 1913 – December 26, 2006) was an American politician who served as the 38th President of the United States from August 1974 to January 1977, following the resignation of Richard Nixon. Prior to this he served eight months as the 40th Vice President of the United States, following the resignation of Spiro Agnew. He was the first person appointed to the vice presidency under the terms of the 25th Amendment, and consequently the only person to have served as both Vice President and President of the United States without being elected to executive office. Before his appointment to the vice presidency, Ford served 25 years as U.S. Representative from Michigan's 5th congressional district, the final nine of them as the House Minority Leader.
ground_truth: Gerald Ford