President Obama's closest adviser, Valerie Jarrett, leaked the Hillary Clinton email story to the press -- timed to hit just as she prepares to jump into the 2016 race -- because, well, a lot of reasons, according to an explosive new report in the New York Post. The story, written by Edward Klein, author of "Blood Feud: The Clintons vs. the Obamas," says a bitter and spiteful Jarrett used people outside the Obama administration to spread the story so it wouldn't be traced back to the White House.