Mel Levitsky, is a retired ambassador who began his diplomatic career as a consul in the northeastern Brazilian city of Belem in the late 1960s. He returned in 1994 to serve as ambassador during the Clinton administration. He's a professor of international policy and practice at the Ford School of Public Policy at the University of Michigan. For full bio visit:

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Brazil's political crisis: U-M experts can discuss

An ambassador's analysis: Mel Levitsky discusses Brazil's presidential election

U-M has a satellite uplink TV studio and an ISDN radio line for interviews.