Rosie O'Donnell has never hidden her disdain for Donald Trump, with their bitter feud spanning nearly two decades and often spilling into the headlines. Now, Rosie O'Donnell is revealing just how deeply Trump impacts her, so much so that even her therapist doesn't fully understand it. Article continues below advertisementRosie O'Donnell Fires BackInstagram | Rosie O'DonnellJust hours after Donald Trump blasted her on Truth Social, labeling the comedian a "threat to humanity" and suggesting he might revoke her U.S. citizenship, Rosie O'Donnell hit back with a fiery rebuttal. Just moments after one of his Truth Social rants, she took to her own social media to unleash another blistering response. Article continues below advertisementHow Rosie O'Donnell Became Donald Trump's Longest-Running Celebrity NemesisMark Von Holden/ AFF-USA.com / MEGARosie O'Donnell and Donald Trump have been locked in a high-profile feud for nearly twenty years, one that began with insults traded in interviews and tabloids and has since escalated into full-blown political warfare.