On Friday, the rehearsal dinner was held in Shelter Island, where the groom's mother, Susan Weber Soros, who was married to the billionaire from 1983 to 2005, owns a 400-square-meter mansion.

A plethora of the country’s most powerful Democrats descended on the Hamptons this weekend to celebrate the marriage of Alex Soros, son of Democratic Party megadonor George Soros, and longtime Hillary ...