According to Wu Blockchain, citing a press release on the official website of U.S. Senator Richard Blumenthal, Blumenthal has sent letters to investigation targets including Binance, Tether, World Liberty Financial, and Fight Fight Fight LLC. The letters demand that they submit relevant records and information by January 4, 2027, otherwise the Permanent Subcommittee on Investigations will seek other means to ensure cooperation. The related investigation covers the illicit use of cryptocurrencies, interactions between the Trump administration and crypto companies, and potential conflicts of interest regarding the Trump family's crypto business. The investigation has not yet reached a final conclusion.