June 21, 2008 -- CHELSEA Clinton is back to her regular life now that her long stretch on the campaign trail for mom Hillary has ended. She hit the Hamptons last weekend with beau Marc Mezvinsky, and they were spotted laughing and holding hands at the John Varvatos boutique in East Hampton. "They were being very affectionate. She was adjusting his jacket and kept getting him things to try on in the dressing room," said our spy. On Sunday, Clinton returned to the city for a margarita-filled brunch with friends at Dos Caminos Park.
