Crypto billionaire Sam Bankman-Fried burst onto the political giving scene this election cycle, becoming the second largest billionaire donor to Democratic causes. Altogether he gave $39.9 million, including $35 million to three different political action committees. Two of his deputies at FTX, his cryptocurrency exchange–gave nearly $29 million more. But that giving looks awfully profligate now, following a single tweet Tuesday morning by the world’s richest crypto billionaire, Changpeng Zhao (aka CZ), founder and CEO of crypto exchange Binance.