How Santos Spent Donors’ Money: Ferragamo, OnlyFans and Botox

George Santos was utterly triumphant. He had just flipped a Long Island congressional seat, improbably helping deliver Republicans a House majority. It was time for a post-election shopping spree.

Over just a few days last November, Mr. Santos dropped $6,000 at Ferragamo, perhaps some of it on the red designer sneakers he later wore to walk the marble halls of Congress. He withdrew $800 in cash at a casino, where an aide said he liked to play roulette. He paid off his rent, and he pulled out another $1,000 in spending money at an A.T.M. near…