TRUMP SLAMS ROSIE I Was Right ... She's a Total FAILURE

Donald Trump and Rosie O'Donnell

Donald Trump is playing the "I Told You So" card with Rosie O'Donnell ... reminding everyone he dubbed her a complete failure years before Oprah cancelled her show.

Trump went on Twitter this morning and wrote, "Rosie O'Donnell has failed again. Her ratings were abysmal and Oprah cancelled her on Friday night."