His advocacy has forced reforms in the health insurance industry to assure critical health care coverage and lower pharmaceutical drug prices. He has worked relentlessly to eradicate corruption in state government and make state contracting accountable, fair, honest and transparent.

He has successfully fought unfair utility rate charges, air pollution causing acid rain and other environmental wrongdoing, and scams and frauds victimizing consumers.

Blumenthal previously served as administrative assistant to U.S. Sen. Abraham A. Ribicoff, aide to former U.S. Sen. Daniel P. Moynihan when Moynihan was Assistant to the President of the United States, and law clerk to U.S. Supreme Court Justice Harry A. Blackmun.
He was U.S. Attorney for Connecticut, the state’s chief federal prosecutor, from 1977 to 1981 -- prosecuting drug traffickers, organized and white collar crime, civil rights violators, consumer fraud and polluters.

He served in the Connecticut House of Representatives from 1984 to 1987, and then the State Senate from 1987 to 1990. As a volunteer attorney for the NAACP legal defense fund, Blumenthal saved the life of an innocent, wrongly convicted death row inmate, who came within hours of execution.

He served as a sergeant in the U.S. Marine Corps Reserve.
Attorney General Blumenthal lives in Greenwich with his wife, Cynthia, and their four children.