Mr. Singh, who was a senior executive in Sam Bankman-Fried's business empire, had pleaded guilty to fraud and campaign finance violations that contributed to FTX's collapse.
President Biden hosted his final pre-election international visitor in the Oval Office, where the speech focused on the Middle East and Europe. But uncertainty loomed over the meeting in the United States.
At least 95 people have died and others are still missing, although it is not clear how many. Rescuers feared finding more bodies, the defense minister said.