The mogul and perennial mayoral hopeful held a bash at a Greek Orthodox Church in Southampton with three separate receptions so guests could socially distance. We’re told “SNL” alum Joe Piscopo sang Sinatra songs.

Attendees — including Reps. Peter King and Lee Zeldin, Lally Weymouth, Guardian Angel Curtis Sliwa, former NYPD boss Ray Kelly, Bill O’Reilly, Douglas Elliman’s Howard Lorber and Dottie Herman and Jean Shafiroff — broke plates per Greek party tradition.