Sexual harassment allegations
On October 26, 2017, CNN disclosed that five women had, on condition of anonymity, accused Halperin of sexual harassment or sexual assault. One woman told the network she was assaulted after visiting Halperin in the early 2000s. "I went up to have a soda and talk and—he just kissed me and grabbed my boobs", the woman said. "I just froze. I didn't know what to do."
Yet another woman told CNN that Halperin once pressed his penis to her shoulder during the 2004 campaign cycle. "I was obviously completely shocked", she said. "Given I was so young and new, I wasn't sure if that was the sort of thing that was expected of you if you wanted something from a male figure in news."
Another former ABC News woman employee told CNN that she had been on the road with Halperin when he propositioned her. "I excused myself to go to the bathroom and he was standing there when I opened the door, propositioning [me] to go into the other bathroom to do something", she said. "It freaked me out. I came out of the ladies' room and he was just standing there. Like almost blocking the door."
CNN also reported that three other women described Halperin, "without consent, pressing an erection against their bodies while he was clothed". One of the women alleged an incident during which "Halperin had pressed his genitals against her while she was seated in his office".
Halperin subsequently apologized for pursuing "relationships with women that I worked with, including some junior to me", but he also denied allegations that he had ever pressed his genitals against one woman and grabbed another woman's breast. He further announced that he would temporarily leave his daily work to "properly deal with this situation".
Later that day, NBC News released a statement saying that in light of the allegations, Halperin would not return as a senior political analyst "until the questions around his past conduct are fully understood". HBO announced it would no longer go forward with a planned miniseries about the presidential election that was based in part on Halperin's then-upcoming book on the 2016 election. The cable channel said in a statement, "HBO has no tolerance for sexual harassment within the company or its productions." Penguin Press also canceled the latest installment of the Game Change series Halperin was co-authoring with John Heilemann, which HBO had already canceled plans to adapt.
A day after their first story, CNN ran a second story revealing that the number of women accusing Halperin of misconduct had grown to "at least a dozen". In a lengthy statement published in response to the CNN report, Halperin denied several of the new allegations, including ones that he masturbated in front of anyone or physically assaulted anyone. He apologized to the women he "mistreated" while acknowledging that he recognized he had a problem near the end of his tenure at ABC, received weekly counseling sessions, and ended the behavior; however, a later report from The Daily Beast included an allegation of harassment from 2011.
On October 30, 2017, both NBC and MSNBC terminated Halperin's contract with the networks. On January 3, 2018, Showtime replaced Halperin on The Circus with then-CBS News anchor Alex Wagner.