Lowell P. Weicker Jr., a Republican U.S. senator who tussled with his own party during the Watergate hearings, championed legislation to protect people with disabilities and later was elected Connecticut governor as an independent, died Wednesday. Weicker's death at a hospital in Middletown, Conn., after a short illness, was confirmed by his family in a statement released by a spokesperson. With a 6-foot-6-inch frame and a shoot-from-the-hip style, Weicker was a leading figure in Connecticut politics from his first election to the General Assembly in 1962 until he decided against running for a second term as governor in 1994.