Mark Halperin is leaving his posts at NBC News and MSNBC after five women claimed he sexually harassed them while he was working for ABC. Halperin said in a statement to CNN I now understand from these accounts that my behavior was inappropriate and caused others pain. For that, I am deeply sorry and I apologize. The CNN report states that three women allege he rubbed erections against their bodies, while one said he touched her breasts. Halperin denied both claims.