Sam Bankman-Fried today replied to a Friday invitation from U.S. Rep. Maxine Waters on Twitter, saying he’s “not sure” he’ll be ready to participate in a scheduled Dec. 13 hearing in Washington, D.C. Bankman-Fried was called to testify before the U.S. House of Representatives Financial Services Committee.

The committee's ranking member, Representative Maxine Waters, tweeted to Bankman Fried that "we would welcome your participation in our hearing" on Capitol Hill. "We appreciate that you've been candid in your discussions about what happened at #FTX," the Congresswoman wrote. "Your willingness to talk to the public will help the company's customers, investors, and others." The invitation wasn’t a demand or subpoena, and Bankman-Fried’s response wasn’t a yes or no. "Once I have finished learning and reviewing what happened, I would feel like it was my duty to appear before the committee and explain," Bankman-Fried tweeted back on Sunday. “I'm not sure that will happen by the 13th. But when it does, I will testify."