The U.S. Securities and Exchange Commission asked a federal district court in Manhattan to quash a subpoena issued by Coinbase demanding documents related to crypto markets and the personal communications of the agency’s chair.

Jorge Tenreiro, the deputy chief of crypto assets in the SEC’s division of enforcement, represents the plaintiff in a case that the agency, headed by chair Gary Gensler, brought against the defendants, Coinbase Inc. and Coinbase Global Inc.