The following are clips from Citicorp's official bio on Robert Rubin:
Mr. Rubin began his career in finance at Goldman Sachs & Company in New York City in 1966... Mr. Rubin was Vice-Chairman and Co-Chief Operating Officer from 1987-90, and served as Co-Senior Partner and Co-Chairman from 1990-92.Mr. Rubin, long active in national and New York City public affairs, left the private sector in 1993 to join the Clinton Administration. Beginning with the President's inauguration, Mr. Rubin served in the White House as Assistant to the President for Economic Policy. Directing the activities of the National Economic Council (NEC), Mr. Rubin guided the newly created NEC as it oversaw the Administration's domestic and international economic policymaking process, coordinated economic policy recommendations to the President, and monitored the implementation of the President's economic policy goals.
Upon the retirement of his predecessor, Lloyd Bentsen, Mr. Rubin was President Clinton's choice to serve as our nation's 70th Secretary of the Treasury. He was confirmed by the U.S. Senate and sworn into office on January 10, 1995.
As Secretary of the Treasury, Mr. Rubin played a leading role in many of the nation's most important policy debates. He was involved in balancing the federal budget; opening trade policy to further globalization;... He left Treasury on July 2, 1999.
Mr. Rubin joined Citigroup on October 26, 1999, where he participates in the strategic, managerial and operational matters of the company.
You can see Rubin is well connected and goes way back on Wall Street. He is a major player today and has been closely connected to the odd financial agreements Citicorp made with ENRON as well as the famous telephone call he made to try Treasury to get them off the investigative hook.
Naturally, "Honest Joe" Lieberman refused to bring him before the Senate committee investigating ENRON on these very deals.
It's also noteworthy that Jon Corzine (D-NJ) was the CEO of Goldman Saks.