Author: Barack and Michelle Almost Split Book Adds They Had Trouble Having Kids, She Was Down on Hillary as Possible Veep, and She Pushed Him to Go With "Yes We Can!" (CBS) Michelle and Barack Obama's marriage was so shaky at one point that they almost separated, according to a new book that gives what it says is a behind-the-scenes look at the Obamas' life together. In "Barack and Michelle: Portrait of An American Marriage," author Christopher Andersen also says the Obamas had lots of trouble conceiving when they wanted to start a family, Michelle gave a thumbs-down on Hillary...