Reuters editor-at-large Sir Harry Evans (L) speaks to American political commentator David Gergen (2nd R), historian and author Richard Norton Smith (2nd L), author and scholar Amity Shlaes (C), and author and journalist John Farrell (R) during the Reuters Newsmaker on American Leadership, Presidents Good, Bad, And Indifferent at the Thomson Reuters Headquarters in Times Square, Manhattan, New York, U.S., May 2, 2017. REUTERS/Darren Ornitz