Rosie isn't the only O'Donnell Trump has had in his crosshairs. Last year, he quarreled with MSNBC's The Last Word anchor Lawrence O'Donnell, who criticized Trump's presidential candidacy and his "birtherism." On October 26, @realDonaldTrump tweeted: "I heard, because his show is unwatchable, that @Lawrence has made many false statements last night about me. Maybe I should sue him?"
O'Donnell responded on the air: "Donald Trump is never going to sue me for two with reasons. First, he knows he could never prove that a single thing I've said about him is untrue. And second, and this is by far the most important one, Donald Trump will never sue me because I know his big secret, his biggest secret and he knows that I know it. Donald Trump cannot afford to sue me. And he knows it."
We're still waiting to find out that secret. Trump hasn't sued.
NEXT: Scotland