January 13, 2016
Hillary Clinton autographed this photo, taken on a flight to a health care forum at Dartmouth College on Dec. 7, 1993, along with a note saying, "To Bernie Sanders, with thanks for your commitment to real health care access for all Americans and best wishes" — Hillary Rodham Clinton, 1993
Bernie Sanders, Sanders Campaign Press Release - Happy Days Online by Gerhard Peters and John T. Woolley, The American Presidency Project https://www.presidency.ucsb.edu/node/326243