Question: Robert Ray investigated the first ethics controversy of the Clinton administration, sometimes referred to as what?

Context paragraphs:
Asian Trekking: Asian Trekking is a commercial adventure company based in Nepal started by Sherpa Ang Tshering.  Ang Tshering (b. 1953) was one of the first graduates of Sir Edmund Hillary’s school and then went on to found Asian Trekking in 1982.  Asian Trekking is based out of Kathmandu, Nepal.  In 2001, it was recorded that Asian Trekking ran 25 large mountain expeditions per year.  In particular, they are known for supporting treks to Mount Everest.  Asian Trekking made international news when in 2006 four of its clients and two of its Sherpas died in a single season.  One of the clients, David Sharp, died near the summit and this event became the center of an international climbing ethics controversy.  Ang said that climbers can die if they use all their energy getting to the summit of Mount Everest, only to be too fatigued for the descent.

Henry Cisneros payments controversy: The Henry Cisneros payments controversy was a lengthy investigation begun in 1995 into allegations that Henry Cisneros, United States Secretary of Housing and Urban Development during the Presidency of Bill Clinton, had lied to the FBI background check investigators about payments he had made to his former mistress.  Independent Counsel David Barrett was appointed to investigate the matter.  In 1995 Cisneros was indicted; in 1997 he pleaded guilty to a misdemeanor; in 2001 he was pardoned by President Bill Clinton.  The Independent Counsel investigation continued, however, focusing on allegations of obstruction of justice by the Clinton administration.  It issued a final report, known as the Barrett Report, in 2006 that did little to resolve matters.

Wade Sanders: Wade Sanders is an attorney from San Diego, California and a retired United States Navy Captain who served as Deputy Assistant United States Secretary of the Navy for Reserve Affairs during the Clinton Administration.  He was formerly California Lt. Gov. John Garamendi's senior adviser for veterans and military affairs.  As an attorney, he specialized in the legal practice of corporate governance and ethics, as well as employee owned companies and lobbying for major corporations.  In December 2008, he pleaded guilty to one charge of possession of child pornography.  On January 9, 2013, Sanders was disbarred.

Robert Ray (prosecutor): Robert William Ray (born April 4, 1960) is an American lawyer practicing in the New York office of the Dallas-based law firm of Thompson & Knight, LLP.  As the successor to Ken Starr as the head of the Office of the Independent Counsel (1999 to 2002) he investigated and issued the final reports on the Whitewater scandal, the White House travel office controversy, and the White House FBI files controversy.  Before that he was Deputy Independent Counsel investigating former Secretary of Agriculture Mike Espy and before that Assistant United States Attorney for the Southern District of New York.

Roger Altman: Roger Charles Altman (born April 2, 1946) is an American investment banker, the founder and senior chairman of Evercore, and a former Democratic politician.  He served as Assistant Secretary of the Treasury in the Carter administration from January 1977 until January 1981 and as Deputy Secretary of the Treasury in the Clinton administration from January 1993 until he resigned in August 1994, amid the Whitewater controversy.

White House travel office controversy: The White House travel office controversy, sometimes referred to as Travelgate, was the first major ethics controversy of the Clinton administration.  It began in May 1993, when seven employees of the White House Travel Office were fired.  This action was unusual because although theoretically staff employees serve at the pleasure of the President and could be dismissed without cause, in practice, such employees usually remain in their posts for many years.

White House FBI files controversy: The White House FBI files controversy of the Clinton Administration, often referred to as Filegate, arose in June 1996 around improper access in 1993 and 1994 to FBI security-clearance documents.  Craig Livingstone, director of the White House's Office of Personnel Security, improperly requested, and received from the FBI, background reports concerning several hundred individuals without asking permission.  The revelations provoked a strong political and press reaction because many of the files covered White House employees from previous Republican administrations, including top presidential advisors.  Under criticism, Livingstone resigned from his position.  Allegations were made that senior White House figures, including First Lady Hillary Clinton, may have requested and read the files for political purposes, and that the First Lady had authorized the hiring of the underqualified Livingstone.

1996 United States campaign finance controversy: The 1996 United States campaign finance controversy was an alleged effort by the People's Republic of China to influence domestic American politics prior to and during the Clinton administration and also involved the fund-raising practices of the administration itself.

Lincoln Bedroom for contributors controversy: The Lincoln Bedroom for contributors controversy was an American political controversy in the 1990s during the Clinton Administration.  It refers to the alleged selling of overnight stays in the Lincoln Bedroom in the White House in return for political campaign contributions.  It occurred in the context of the larger and somewhat separately focused 1996 United States campaign finance controversy.  No charges were made in connection to the Lincoln Bedroom matter.

Commerce Department trade mission controversy: The Commerce Department trade mission controversy was an American political controversy in the 1990s during the Clinton Administration.  It refers to the alleged selling of seats on United States federal planes going on international trade missions, for the purpose of raising campaign contributions.  No official charges were ever made in conjunction with the allegations but the Commerce Department did change its policies regarding the selection of participants for such missions so they would not be politically based.

Supporting paragraphs: Robert Ray (prosecutor) White House travel office controversy
Answer: Travelgate