Where a U.S. District Court questioned credibility of an expert witness based on counsel’s decision to provide the witness with a summary judgment motion, the court committed error and a new trial on issue of damages was required.The 7th U.S. Circuit Court of Appeals affirmed in part and reversed in part decisions by U.S. District Judges Milton I. Shadur and Virginia M. Kendall.Anthony Sansone began working at the U.S. Postal Service in 1981. Sansone was diagnosed with multiple sclerosis in 1991. Eight years later …