NEW YORK, NY - MAY 22: A new book my Sen. John McCain (R-AZ), titled "The Restless Wave: Good Times, Just Causes, Great Fights, and Other Appreciations" sits for sale on a shelf at a Barnes & Noble Bookstore in Manhattan, May 22, 2018 in New York City. Co-authored with longtime aide and friend Mark Salter, the candid political memoir goes on sale today. The book includes reflections from the 2008 presidential campaign, his life in the Senate and his thoughts on current U.S. President Donald Trump. (Photo by Drew Angerer/Getty Images)