RFK JR.BRANDED SEX ADDICT AS NEW CHEATING SCANDAL EXPLODES

Marriage to Cheryl Hines hanging by a thread over his links to star journalist

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PRESIDENTIAL washout Robert F. Kennedy Jr. is being urged to seek help for sex addiction following explosive allegations that the serial cheater was indulging in yet another affair - this time with a top journalist, squeal sources.

Insiders claim the political scion, 70, will have to make serious concessions likely including hush-hush treatment at a facility - to save his rocky marriage to long-suffering Curb Your Enthusiasm actress Cheryl Hines, 59.

"No doubt she's furious and revolted and feeling very betrayed, so Bobby is going to have to do something drastic to keep his marriage from imploding," blabs a mole.

The nephew of President John F. Kennedy stands accused of carrying on a months-long sexting affair with Olivia Nuzzi, 31, a star political reporter for New York magazine.