Chris Christie seems to have no interest in squashing the beef between him and Jared Kushner. Christie—who, as a U.S. attorney, prosecuted Kushner’s dad, Charles, for tax evasion—has called the case “one of the most loathsome, disgusting crimes that I prosecuted.” Christie's new book, Let Me Finish, has laid bare the tensions between Jared Kushner and himself—he accused Donald Trump’s son-in-law of carrying out a political “hit job” on him as an act of revenge for the prosecution of his father. Speaking to PBS Tuesday night, Christie said: “Mr. Kushner pled guilty, he admitted the crimes. So what am I supposed to do as a prosecutor?... If a guy hires a prostitute to seduce his brother-in-law, and videotapes it, and then sends the videotape to his sister in an attempt to intimidate her from testifying before a grand jury, do I really need any more justification than that?” Charles Kushner pleaded guilty in 2004 to 18 counts of filing false tax returns, retaliating against witnesses and making illegal campaign contributions. He served 14 months in prison.