Back in the late 1980’s, when then Colorado Sen. Gary Hart was running for president, he had a reputation as a “womanizer,” but it wasn’t anything anyone could prove or anything a political reporter would seriously write about. That all changed when The Miami Herald got a tip and ran with a story that brought Hart down. It’s all documented in "All The Truth Is Out: The Week Politics Went Tabloid," a new book by Matt Bai, a former political reporter for the New York Times Magazine who now writes for Yahoo News.