WASHINGTON (AP) — All these years later, the scene still is almost too bizarre to imagine: a tearful president and his perplexed aide, neither very religious, kneeling in prayer on the floor of a White House bedroom in the waning hours of a shattered presidency. Until the embittered end, Henry Kissinger was one of the trusted few of a distrusting Richard Nixon. That trust, combined with Kissinger’s intellectual heft and deft manipulation of power, made him a pivotal player in a tense period in American history, a giant of U.S. foreign policy and a fixture in international relations for decades...