Did Elon Musk Bring a Date to Mar-a-Lago?

Elon Musk’s never-ending stay at Mar-a-Lago continued apace last week at the First Policy Institute’s black-tie gala. Though he has made a habit of bringing his oldest son with Grimes, X, everywhere, he was photographed at the gala holding a different child — most likely one of the three he shares with his employee, Shivon Zilis, who also seems to have joined the festivities.

Zilis, a 38-year-old executive at Musk’s brain-chip company...