Mark Halperin out at NBC, MSNBC amid sex assault accusations Look what I found. The internet is forever.Mark Halperin, the NBC and MSNBC analyst who co-authored the bestselling 2008 election postmortem "Game Change," is leaving both networks after five women accused him of sexual harassment in a CNN report published Wednesday."We find the story and the allegations very troubling. Mark Halperin is leaving his role as a contributor until the questions around his past conduct are fully understood," MSNBC told Fox News in a statement. (read more)