On August 9, 1974, Richard Nixon became the first and only U.S. president to resign from office—to avoid almost certain impeachment. Utterly disgraced, he was forced to flee the White House with a small cadre of advisors and family. Richard Nixon was a completely defeated man.

Yet only a decade later, Nixon was a trusted advisor to presidents, dispensing wisdom on campaign strategy and foreign policy, shaping the course of U.S.-Soviet summit meetings, and representing the U.S. at state funerals—the model of an elder statesman. Kasey Pipes, author of “After the Fall: The Remarkable Comeback of Richard Nixon,” tells us about surprises like this:

-- How Nixon’s advice on the Strategic Defense Initiative (SDI) shaped Ronald Reagan’s negotiations with Gorbachev— and changed history
-- How Nixon traveled to China after Tiananmen Square to help preserve the U.S.-Chinese relations that he had opened up years earlier
-- The Saturday morning presidential radio address: a Nixon idea
-- Nixon’s surprising friendship with Bill Clinton