He was Mike Dukakis' veep choice in 1988, and the only bright spot on an otherwise lame ticket.
He was Bill Clinton's treasury secretary, and a former U.S. Senator from Texas (he won that seat by beating George H.W. Bush in 1970).
Most memorable line, served up to Dan Quayle during the 1988 veep debate, when Quayle claimed he was as experienced as John Kennedy:
"Senator, I served with Jack Kennedy," Bentsen declared. "I knew Jack Kennedy. Jack Kennedy was a friend of mine. Senator, you're no Jack Kennedy!"