Democratic congressmen Jeff Merkley and Sean Casten have raised concerns over a potential conflict of interest involving former President Donald Trump and Tron founder Justin Sun. In a letter to SEC Chairman Paul Atkins, they questioned the SEC's decision to withdraw its lawsuit against Sun, who has been under investigation by the U.S. Department of Justice since 2021 and was sued by the SEC in 2023. Sun's investment in Trump's World Liberty Financial (WLFI) platform reportedly netted Trump a $400 million profit. The congressmen have requested the SEC provide answers by October 2, 2025, regarding its communications with the White House and Sun, as well as the status of complaints against him. Additionally, WLFI has blacklisted Sun's Ethereum address after he transferred $9 million in WLFI tokens, which Sun claims were not intended for sale.