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She was also joined by two of her children as they got a quick lesson from an instructor. Kushner, 44, wasn’t photographed at the time, though he was reportedly present. Trump and Kushner share daughter Arabella Rose, 13, and sons Joseph Frederick, 10, and Theodore James, 8. The fitness lover’s sister-in-law Karlie Kloss also joined the family vacation in Costa Rica despite the pair’s rumored feud.
