The network's superstar anchor says she was sexually harassed by Roger Ailes 10 years ago as a young correspondent.
Fox News’ Megyn Kelly has reportedly claimed she too was sexually harassed by her boss at the network a decade ago.
Gabriel Sherman, who wrote the New York Magazine article, told CNN Tuesday that Ailes has until "August 1 to resign quietly and amicably, otherwise, he could be terminated for cause after that. So, they have gone to him with this ultimatum."
The 45-year-old anchor’s allegations were made to a team of lawyers hired by Fox News to investigate claims that 76-year-old Ailes sabotaged the career of former host Gretchen Carlson because she rebuffed his advances.
Carlson is now suing Ailes, alleging in court papers that he told her: "I think you and I should have had a sexual relationship a long time ago then you'd be good and better and I’d be good and better."
Ailes, considered to be the most powerful man in TV news, has denounced the charges: "Gretchen Carlson's allegations are false. This is a retaliatory suit for the network's decision not to renew her contract."
Several high profile women at Fox News have come forward to defend him, including Kimberly Guilfoyle, Greta Van Susteren, Maria Bartiromo and Jeanine Pirro.
Kelly has remained silent since the story broke.