U.S. Senator Elizabeth Warren, the Ranking Member of the U.S. Senate Committee on Banking, Housing and Urban Affairs, sent a letter to JPMorgan Chase & Co. CEO Jamie Dimon seeking information about his and the bank’s relationship with Jeffrey Epstein. The request follows emails and related reporting released by the Department of Justice this year in response to the Epstein Files Transparency Act, which Warren said raise questions about the extent of JPMorgan’s relationship with Epstein and Dimon’s knowledge of those ties. She requested answers by July 24, 2026. The letter says Epstein was a JPMorgan client from 1998 to 2013, including during Dimon’s tenure as CEO from 2006, and describes Epstein as a profitable client who in 2003 generated USD 8 million in fees, opened at least 134 accounts through himself, his companies and associates, processed more than USD 1 billion in transactions and brought in several clients. Warren contrasted Dimon’s past position that he did not recall knowing about Epstein or that Epstein was a JPMorgan client before his 2019 arrest with reported 2009 emails in which Epstein and then-U.K. Business Secretary Peter Mandelson appeared to discuss how Dimon could press then-Chancellor of the Exchequer Alistair Darling over a proposed one-time 50% tax on bankers’ bonuses above GBP 25,000, including a call Dimon reportedly made on Dec. 29. The request forms part of Warren’s broader oversight of the banking system’s role in facilitating Epstein’s crimes. The release notes that over the last year she has pressed federal banking regulators to investigate current and former U.S. banking executives, called for a Senate Banking Committee hearing, sought information from Goldman Sachs CEO David Solomon and raised related questions during the Federal Reserve chair nomination process.