This book could not have happened without her. Her involvement touched every aspect of its production, including substance, style, editing, writing, and punctuation. We are deeply grateful—and any misplaced commas are entirely the responsibility of the authors. We would also like to thank our friend Kara Ahern, whose input to this project—ranging from substantive advice, to research, to PR and marketing, to hauling horses—has been incomparable. This is the third Cheney book that Jim Steen, a dear friend and colleague for more than forty years, has worked on with us. He has spent hours reading, editing, and fact-checking the manuscript, making key suggestions about content, and catching our mistakes. Any that remain are ours, not Jim’s. We are indebted to Ambassador Eric Edelman, General Jack Keane, Michael Doran, Robert Karem, John Hannah, Scooter Libby, David Addington, Juan Zarate, and Marc Thiessen for their suggestions and input on key portions of the manuscript. We have traveled many miles over the years with our friend Gamal Helal.