Bill O'Reilly has for years been Fox's most valuable on-air talent. He may also have been its loneliest.
The embattled primetime host is widely disliked at Fox News and its parent company 21st Century Fox, both feared and loathed for his outsized ego and rude temperament, according to six current and former high-ranking sources at the company.
Even 21st Century Fox executive chairman Rupert Murdoch, who has stood by O'Reilly amid recent revelations about sexual harassment allegations, does not have a close personal relationship with his star primetime host, several of these sources said.
While O'Reilly's future at the network is likely to be determined by business calculations, sources said that his failure to establish relationships has made him more vulnerable as Murdoch and his sons debate the host's future at the network. The Murdochs have not yet announced a decision regarding O'Reilly's future, but one well-placed source told CNNMoney on Tuesday that representatives for Fox and O'Reilly are discussing the possibility of an exit, and the Murdoch-owned Wall Street Journal has reported that they are preparing to cut ties.