Donald Trump’s campaign manager Kellyanne Conway may have been Supergirl at the post-election bash of mega-mogul Robert Mercer of Renaissance Technologies. But guess who came as Superman?

Suffolk Republican Chairman John Jay LaValle.

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LaValle, reached Friday, said his outfit wasn’t nearly as elaborate as Conway’s. “I came as Clark Kent/Superman,” said LaValle, who wore a suit and Clark Kent-type glasses with a Superman T-shirt over the ensemble.

He said he saw Conway at the event and “We laughed about it.”

Also invited to the bash was Westchester County Executive Rob Astorino and former Sen. Alfonse D’Amato.