1941 – Born in Santurce, Puerto Rico. Judge of the United States District Court, Southern District of New York.
1964 – Graduated from New York University.
1968 – Earned his LL.B. degree at Yale Law School.
– He was an assistant to the Mayor of New York City.
1973 – Executive director of the Department of City Planning, New York City.
1974 – Special counsel to the comptroller.
1975 – First assistant counsel to the governor, State of New York.
1976 – Chairman of the City Planning Commission.
1978 – Commissioner and vice chairman of the New York State Housing Finance Agency.
1979 – United States Undersecretary of Housing and Urban Development.
1993 – United States Ambassador on the Economic and Social Council of the United Nations.
1998 – United States Ambassador/Permanent Representative of the U.S. to the Organization of American States.
1999 – Nominated by William J. Clinton to a seat vacated by Sonia Sotomayor, confirmed by the Senate and received commission on October 5th.