By Tom Boggioni In contrast to the aftermath of most presidencies, where high-profile political appointees hit the cable circuit and publish books touting their successes during their government service, former notable Donald Trump advisors are instead spilling the beans about what really went on behind the scenes in the Oval Office. Little of it, as MSNBC Maddowblog’s Steve Benen points out, is flattering to the one-term president. The latest to jump on the bandwagon is former Defense Secretary Mark Esper, who has a new book coming out titled, “A Sacred Oath: Memoirs of a Secretary of Defense…