Bill and Hillary Clinton dined with Ron Perelman and his wife, Dr. Anna Chapman, at Nick & Toni’s in East Hampton, while rock promoter Ron Delsener and art dealer Larry Gagosian, with their wives, dined at the next table. Spies said both Clintons enjoyed fish dishes as their security detail watched over them from the bar. While Delsener — who had attended the Perelmans’ star-studded Apollo in the Hamptons bash on Saturday — went over to greet them and the Clintons, there was no interchange with Gagosian. Perelman is suing the gallery owner, alleging he overcharged him for works including a Jeff Koons sculpture. A source joked, “Larry certainly wasn’t joining them for after-dinner drinks.”