Uber asked Eric Holder, the former U.S. attorney general, to lead the probe after an extraordinary string of scandals at the ridesharing company. The past six months have been enough of a public-relations nightmare for Uber to have raised the question of whether the company can survive—or at least whether its $70 billion valuation will take a hit.

Uber’s recent problems have included a high-profile public boycott, an explosive first-hand account of sexism at the company, revelations of how Uber used secret software to evade law enforcement, and the leaked video of Kalanick’s argument with a driver.

Kalanick’s leave will begin just three months after he pledged to his employees that he would “grow up” and get the “leadership help” he needed, Kalanick may take a leave of absence from the embattled ridesharing company, according to multiple reports. Though the board was expected to discuss Kalanick’s future on Sunday, it’s not clear whether a leave of absence was one of the items formally recommended in the Holder report.

The Holder report chronicles “a frequently chaotic and ‘hostile work environment’ without adequate systems in place to ensure that violations such as sexual harassment and retaliatory behavior were dealt with professionally,” according to Recode. Emil Michael, one of Kalanick’s closest confidants and the second in command at Uber, stepped down on Monday, according to an email to Uber employees obtained by The New York Times. It wasn’t clear from the email whether he resigned or was forced out.

Uber has suffered several high-profile resignations and terminations in recent months. In May, Uber fired Anthony Levandowski, a star engineer and the central figure in a high-profile legal battle over self-driving cars.

His termination was tied to a federal lawsuit in which Waymo—the self-driving car company that spun out of Google—is accusing Uber and Levandowski of stealing its design secrets. An Uber spokesperson told The Atlantic that Uber had been pressing Levandowski to help with its internal investigation of the matter for months, but that he did not meet a deadline set for him. Levandowski could not be reached for comment. He has exercised his Fifth Amendment right against self-incrimination, which played a role in a federal judge’s decision to deny arbitration in the Waymo case.

Uber’s request for arbitration would have allowed the ride-sharing giant to defend itself behind closed doors. Instead, Uber will have to go to trial to answer Waymo’s accusations in what is sure to be an ugly showdown.

The case is poised to be among the biggest legal fights over intellectual property so far this century. The technology at stake is at the center of the emerging and potentially highly lucrative self-driving car industry, and the key players are two of the world’s top tech companies. (Google rebranded its self-driving car project as Waymo in 2016.)