Kim Kardashian and Kris Jenner are going after Ray J now over his wild claims that they are the subject of a federal criminal racketeering investigation! According to TMZ on Wednesday, the pair is suing the singer for defamation following the latest chapter in his decades-long campaign against them. The lawsuit, filed by Alex Spiro, claims Ray J is "unable to accept the end of his fleeting relationship with Ms. Kardashian over 20 years ago" and has exploited their fame for his own personal gain over and over again. As an example? The suit mentions TMZ's documentary United States vs.