he takes direct aim at the deputy attorney general, rod rosen tine, who is overseeing the -- rosenstein, who is overseeing the russia investigation. kristin fisher joining us live from the white house with more. >> reporter: hey, gregg. this is a significant statement made by the president on twitter because he seemed to confirm that he is, indeed, the subject of an investigation by saying, quote: i'm being investigated for firing the fbi director by the man who told me to fire the fbi director. witch hunt. now, the president's heel team insists that that was not -- legal team insists that was not a confirmation, he was reporting about an obstruction of justice investigation. as for the man that he was referring to, well, that would likely be the deputy attorney general, rod rosenstein, who appointed the special counsel, robert mueller. he also wrote the letter that made the case for james comey's firing as fbi director. now his job could be on the line as made evident in a hearing earlier this week. watch. >> could you be terminated