Fox News has a secret file of damaging info on Tucker Carlson in case he starts trashing the network: report

• Fox News PR keeps an "oppo file" on Tucker Carlson in case he lashes out, Rolling Stone reported.
• One insider told the outlet that such files are kept on all the network's talent. 
• Fox denied the report, while a representative for Carlson did not immediately respond. 

Fox News' PR chief has a dossier of damaging information on Tucker Carlson to be used in the event that he comes out swinging against the network, Rolling Stone reported.