Question: What was the law enforcement office held by the last US president to be impeached prior to 2016?

full_context: Document 1: Democratic Party of Georgia: Since 1948, the Democrats have secured the state of Georgia 7 times, while the Republican party secured Georgia 8 times. However, during the past 6 presidential elections, the Democrats won the state of Georgia only once, in 1992. Bill Clinton won 43.47% of the vote while incumbent President George H.W. Bush carried 42.88%, while losing his quest for a 2nd term.
Document 2: Solicitor General of the United States: Other than the justices themselves, the Solicitor General is among the most influential and knowledgeable members of the legal community with regard to Supreme Court litigation. Six Solicitors General have later served on the Supreme Court: William Howard Taft (who served as the 27th President of the United States before becoming Chief Justice of the United States), Stanley Forman Reed, Robert H. Jackson, Thurgood Marshall, and Elena Kagan. Some who have had other positions in the office of the Solicitor General have also later been appointed to the Supreme Court. For example, Chief Justice John Roberts was the Principal Deputy Solicitor General during the George H.W. Bush administration and Associate Justice Samuel Alito was an Assistant to the Solicitor General. The last former Solicitor General to be successfully nominated to the court was Justice Elena Kagan. Only one former Solicitor General has been nominated to the Supreme Court unsuccessfully, that being Robert Bork; however, no sitting Solicitor General has ever been denied such an appointment. Eight other Solicitors General have served on the United States Courts of Appeals.
Document 3: Tennessee: By 1960 African Americans comprised 16.45% of the state's population. It was not until after the mid-1960s and passage of the Voting Rights Act of 1965 that they were able to vote in full again, but new devices, such as at-large commission city governments, had been adopted in several jurisdictions to limit their political participation. Former Gov. Winfield Dunn and former U.S. Sen. Bill Brock wins in 1970 helped make the Republican Party competitive among whites for the statewide victory. Tennessee has selected governors from different parties since 1970. Increasingly the Republican Party has become the party of white conservatives.
Document 4: Democratic Party (United States): Fifteen Democrats have served as President under 16 administrations: the first was seventh President Andrew Jackson, who served from 1829 to 1837; Grover Cleveland served two nonconsecutive terms from 1885 to 1889 and 1893 to 1897; and is thus counted twice (as the 22nd and 24th President). The most recent was the 44th President Barack Obama, who held the office from 2009 to 2017.
Document 5: Impeachment of Bill Clinton: Leading to the impeachment, Independent Counsel Ken Starr turned over documentation to the House Judiciary Committee. Chief Prosecutor David Schippers and his team reviewed the material and determined there was sufficient evidence to impeach the president. As a result, four charges were considered by the full House of Representatives; two passed, making Clinton the second president to be impeached, after Andrew Johnson in 1868, and only the third against whom articles of impeachment had been brought before the full House for consideration (Richard Nixon resigned from the presidency in 1974, while an impeachment process against him was underway).
Document 6: Mark Clinton: In 1973 he joined the Irish Government of Liam Cosgrave as Minister for Agriculture and Fisheries in the National Coalition. Clinton is best remembered as the Agriculture Minister who negotiated Ireland's entry into the European Union's Common Agricultural Policy, a development which brought billions of pounds to Irish farming and agri business. He served in government until 1977 and retired from the Dáil in 1981. Clinton also served in the European Parliament for the Leinster constituency from 1979 to 1989 and his political experience was recognised by his election as vice-president of that assembly.
Document 7: Impeachment in the United States: Impeachment in the United States is an enumerated power of the legislature that allows formal charges to be brought against a civil officer of government for crimes alleged to have been committed. Most impeachments have concerned alleged crimes committed while in office, though there have been a few cases in which Congress has impeached and convicted officials partly for prior crimes. The actual trial on such charges, and subsequent removal of an official upon conviction, is separate from the act of impeachment itself. Impeachment proceedings have been initiated against several presidents of the United States. Andrew Johnson and Bill Clinton are the only two presidents to have been successfully impeached by the House of Representatives, and both were later acquitted by the Senate. The impeachment process against Richard Nixon was never completed, as Nixon resigned his office before the vote of the full House for impeachment, but such a vote was widely expected to pass, and the threat of it and a subsequent conviction in the Senate was the impetus for Nixon's departure. To date, no U.S. President has been removed from office by impeachment and conviction. The impeached official continues in office until conviction.
Document 8: Arkansas Attorney General: The best-known Arkansas Attorney General is Bill Clinton, as he later became President of the United States; he was elected to the position in 1976 and served until he was elected governor in 1978. Other former attorneys general include Bruce Bennett, Joe Purcell, Ray Thornton, Jim Guy Tucker, Mark Pryor, Steve Clark and Mike Beebe. Until Rutledge took office, Democrats had held the office since Reconstruction.
Document 9: University of Chicago: Notable alumni in the field of government and politics include the founder of modern community organizing Saul Alinsky, Obama campaign advisor and top political advisor to President Bill Clinton David Axelrod, Attorney General and federal judge Robert Bork, Attorney General Ramsey Clark, Prohibition agent Eliot Ness, Supreme Court Justice John Paul Stevens, Prime Minister of Canada William Lyon Mackenzie King, 11th Prime Minister of Poland Marek Belka, Governor of the Bank of Japan Masaaki Shirakawa, the first female African-American Senator Carol Moseley Braun, United States Senator from Vermont and 2016 Democratic Presidential Candidate Bernie Sanders, and former World Bank President Paul Wolfowitz.
Document 10: Impeachment: Similar to the British system, Article One of the United States Constitution gives the House of Representatives the sole power of impeachment and the Senate the sole power to try impeachments of officers of the U.S. national government. (Various state constitutions include similar measures, allowing the state legislature to impeach the governor or other officials of the state government.) In contrast to the British system, in the United States impeachment is only the first of two stages, and conviction during the second stage requires a two - thirds majority vote. Impeachment does not necessarily result in removal from office; it is only a legal statement of charges, parallel to an indictment in criminal law. An official who is impeached faces a second legislative vote (whether by the same body or another), which determines conviction, or failure to convict, on the charges embodied by the impeachment. Most constitutions require a supermajority to convict. Although the subject of the charge is criminal action, it does not constitute a criminal trial; the only question under consideration is the removal of the individual from office, and the possibility of a subsequent vote preventing the removed official from ever again holding political office in the jurisdiction where he or she was removed. Impeachment with respect to political office should not be confused with witness impeachment.
Document 11: Impeachment in the United States: Impeachment in the United States is an enumerated power of the legislature that allows formal charges to be brought against a civil officer of government for crimes alleged to have been committed. Most impeachments have concerned alleged crimes committed while in office, though there have been a few cases in which Congress has impeached and convicted officials partly for prior crimes. The actual trial on such charges, and subsequent removal of an official upon conviction, is separate from the act of impeachment itself. Impeachment proceedings have been initiated against several presidents of the United States. Andrew Johnson and Bill Clinton are the only two presidents to have been successfully impeached by the House of Representatives, and both were later acquitted by the Senate. The impeachment process against Richard Nixon was never completed, as Nixon resigned his office before the vote of the full House for impeachment, but such a vote was widely expected to pass, and the threat of it and a subsequent conviction in the Senate was the impetus for Nixon's departure. To date, no president has been removed from office by impeachment and conviction. The impeached official continues in office until conviction.
Document 12: Impeachment in the United States: At the federal level, Article Two of the United States Constitution states in Section 4 that ``The President, Vice President, and all civil Officers of the United States shall be removed from Office on Impeachment for, and conviction of, Treason, Bribery, or other High Crimes and Misdemeanors. ''The House of Representatives has the sole power of impeaching, while the United States Senate has the sole power to try all impeachments. The removal of impeached officials is automatic upon conviction in the Senate. In Nixon v. United States (1993), the Supreme Court determined that the federal judiciary can not review such proceedings.
Document 13: Impeachment in the United States: Impeachment in the United States is the process by which the lower house of a legislature brings charges against a civil officer of government for crimes alleged to have been committed, analogous to the bringing of an indictment by a grand jury. At the federal level, this is done by the House of Representatives. Most impeachments have concerned alleged crimes committed while in office, though there have been a few cases in which officials have been impeached and subsequently convicted for prior crimes. The impeached official remains in office until a trial is held. That trial, and their removal from office if convicted, is separate from the act of impeachment itself. Analogous to a trial before a judge and jury, these proceedings are (where the legislature is bicameral) conducted by upper house of the legislature, which at the federal level is the Senate.
Document 14: Bill Clinton: William Jefferson Clinton (né Blythe III; born August 19, 1946) is an American politician who served as the 42nd President of the United States from 1993 to 2001. Prior to the presidency, he was the Governor of Arkansas from 1979 to 1981, and again from 1983 to 1992. A member of the Democratic Party, Clinton was ideologically a New Democrat and many of his policies reflected a centrist ``Third Way ''political philosophy.
Document 15: United States Senate: The House of Representatives has impeached sixteen officials, of whom seven were convicted. (One resigned before the Senate could complete the trial.) Only two presidents of the United States have ever been impeached: Andrew Johnson in 1868 and Bill Clinton in 1998. Both trials ended in acquittal; in Johnson's case, the Senate fell one vote short of the two-thirds majority required for conviction.
ground_truth: Arkansas Attorney General
sub_queries: who was the last person to get impeached Answer: Bill Clinton
Bill Clinton >> position held Answer: Arkansas Attorney General