A n emerging rift between Melania Trump and Hunter Biden escalated Thursday when the son of former President Joe Biden issued an expletive-laden response to the first lady's demand that he apologize for an allegation he made about her alleged prior ties to convicted sex trafficker Jeffrey Epstein.

President Donald Trump confirmed Thursday morning that Melania Trump’s attorneys are threatening legal action against Hunter Biden, saying he told her to “go forward.” “You know, I’ve done pretty well on these lawsuits lately.

Biden called the Trumps "bullies" and seemed amused that "they think that a billion dollars is gonna scare me.”