It is in the personal realm that Garrow’s account is particularly revealing. He shares for the first time the story of a woman Obama lived with and loved in Chicago, in the years before he met Michelle, and whom he asked to marry him. Sheila Miyoshi Jager, now a professor at Oberlin College, is a recurring presence in “Rising Star,” and her pained, drawn-out relationship with Obama informs both his will to rise in politics and the trade-offs he deems necessary... Garrow, who received a Pulitzer Prize for his biography of Martin Luther King Jr., concludes this massive new work...