The Salahis, both in their 40s, showed up about halfway through the guest arrivals. A Marine announced their names, and the couple -- he in a tux, she in a striking red and gold lehenga (traditional Indian formalwear) -- swept pass reporters and photographers, stopping several times to pose for pictures. They then walked into the White House lower hallway, where they mingled with guests on the red carpet before heading up to the cocktail reception in the East Room. - Shakeel Mahate