Much of The Obamas’ focus is psychological, and rightly so. History is often made by those whose positive moods are timed right. For example, at the last possible moment in South Carolina to head off a Mitt Romney cakewalk to the GOP nomination, Newt Gingrich—whose mother was bipolar—turned into a ball of fire. (As I write, Newt’s promising a moon colony by his second term and is proudly accepting the label “grandiose.”)
Kantor is struck by the less flagrant but still marked swings in Obama’s mood and energy level. ... Oddly, Obama’s down spells never seem to undermine his ego, which in Kantor’s telling remains bizarrely expansive for such an otherwise rational individual.
Please read the whole thing there.