Jenner & Block - MCI V. AT&T

MCI V. AT&T

Jenner & Block rose to national prominence as a litigation firm during its antitrust fight with AT&T in the 1970s. Jenner & Block received the assignment from its former partner, John R. Worthington, who served as the General Counsel of Microwave Communications, Inc., the company that later became MCI Communications. Jenner & Block filed a lawsuit against AT&T in March 1974 alleging that AT&T had monopolized the market for telecommunications services in violation of the Sherman Antitrust Act. The case came to trial in 1980 in the U.S. District Court for the Northern District of Illinois based in Chicago. AT&T was represented by its outside law firm, Sidley & Austin, now Sidley Austin. After several months of trial, on June 13, 1980, a federal jury returned a verdict in favor of MCI in the amount of $600 million. After trebling the judgment as required by the antitrust laws, the $1.8 billion judgment was the largest monetary award in the history of American law. While the judgment was eventually thrown out on appeal and the case was settled for much less, it was the beginnings of the break-up of the AT&T monopoly; it established MCI as AT&T's primary competitor in the long distance telephone market; and it thrust Jenner & Block into its role as AT&T antagonist.