When Democratic donors attacked the Joe Biden and Kamala Harris administration’s chief antitrust regulator, Lina Khan, during this year’s election, Vice President Harris declined to defend her, prompting some critics to say Harris was abandoning a populist message during a heated campaign.

At the time, the public did not know what was just revealed: Khan’s agency had launched a probe of the rideshare giant employing Harris’s brother-in-law and top adviser, who helped craft the Democratic campaign’s economic pitch to voters and big donors.

Last week, Bloomberg revealed that the Federal Trade Commission (FTC) earlier this year opened a probe into Uber’s subscription service, looking at whether the rideshare company had violated consumer protection laws.