Connie Mack III Cornelius Alexander McGillicuddy III (born October 29, 1940 in Philadelphia, Pennsylvania), known as Connie Mack for short, is a former Republican member of the United States House of Representatives from 1983 to 1989 and of the United States Senate from 1989 to 2001, all from Florida. He served as chairman of the Senate Republican Conference, 1997-2001.
He is the grandson of Connie Mack, the manager and owner of baseball's Philadelphia Athletics, and member of the Baseball Hall of Fame. Mack's other grandfather was Morris Sheppard, U.S. Senator and Representative from Texas, and his step-grandfather was Tom Connally, the other U.S. Senator from Texas (Sheppard's widow married Connally the year after Sheppard died ). Mack's great-grandfather was John Levi Sheppard who was also a U.S. Representative from Texas. His son, Connie Mack IV, a former Florida State Representative, was elected to his father's old U.S. House seat in 2004.
In 2005, Connie Mack III was appointed by the president of the U.S., George W. Bush, as Chairman of the President's Advisory Panel on Federal Tax Reform.
Preceded by: Lawton Chiles United States Senator (Class 1) from Florida 1989 - 2001 Succeeded by: Bill Nelson