By Jack Newfield. The Sun-Times review snippet describes Newfield as knowing RFK "consummately and emotionally," and the book as coming "as close as any we are likely to get to being the non-fiction novel that Robert Kennedy's last five years demanded." I'm not entirely sure that's complimentary, but it's also blurbed by Jimmy Breslin for what that's worth.
This paperback isn't in great shape -- toning, a cracked and slightly spreading spine, a notch out of the front cover -- but it's readable, and a zeitgeist-y look at how the Kennedys were written about in the late sixties.