"When Valerie Jarrett interviewed a promising young lawyer named Michelle Robinson in July 1991 for a job in Chicago city government, neither knew that it was the first step on a path that would end in the White House. Jarrett soon became Michelle and Barack Obama's trusted personal adviser and family confidante; in the White House, she was known as the one who 'got' him and helped him engage his public life. Jarrett joined the White House team on...