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Maybe Mike Bloomberg got some tips on running against Donald Trump from Hillary Clinton at dinner this week?

The former NYC mayor and current Democratic presidential candidate was spotted at Orso on Wednesday night with Hillary, as well as her daughter Chelsea Clinton. Also at their table were Barry Diller and Diane von Furstenberg, plus Annette de la Renta, we hear.

Sources said that the group was celebrating de la Renta’s birthday, which is later this month. The meal was so spirited that Chelsea’s husband, Marc Mezvinsky, was spotted telling another table, “I hope we weren’t too loud.”