US Senator Richard Blumenthal (D-CT), incoming Chair of the Senate Permanent Subcommittee on Investigations (PSI), issued a sweeping notice on Thursday to individuals, companies, and government agencies that have failed to cooperate with a range of ongoing inquiries, including investigations into cryptocurrency; corruption involving the Trump Administration’s self-enrichment and national security threats; rampant misconduct by federal immigration agents; Big Tech and other corporate enablers; and the Trump Administration’s lawless abuse of power.
In a series of letters, Blumenthal reminded recipients of the Subcommittee’s expectation for their prompt cooperation and warned: “Please also note that failure to voluntarily produce the requested records and information by January 4, 2027, will leave the Subcommittee with no choice but to consider alternative measures to obtain compliance.”
The entities receiving letters Thursday include:
• World Liberty Financial and Fight Fight Fight LLC: In May 2025, Blumenthal opened an inquiry into the $TRUMP cryptocurrency and World Liberty Financial Inc. (WLFI) following reporting that Trump-connected cryptocurrency firms may be enabling the violation of government ethics requirements, facilitating financial transactions with foreign nationals under federal prosecution, taking investments from foreign governments, and potentially violating federal laws. In July 2026, Blumenthal hosted a public forum on the Trump family’s crypto ventures, including publishing testimony from $TRUMP coin investors who lost thousands on the scheme.
Blumenthal’s letter to World Liberty Financial is available here and Fight Fight Fight LLC is available here.
• Binance and Tether: Blumenthal is leading an inquiry into the illicit use of cryptocurrencies and the Trump Administration’s self-enrichment and self-dealings with cryptocurrency firms. As part of this investigation, Blumenthal released a report detailing how Tether and its dollar-pegged stablecoin have become a significant financial lifeline within Iran’s shadow banking network.
Blumenthal’s letter to Binance is available here and Tether is available here.
• Secretary of Homeland Security Markwayne Mullin: In August 2025, Blumenthal opened an expansive inquiry into abuses by DHS and federal immigration enforcement authorities. Over the last two years, Blumenthal and U.S. Representative Robert Garcia (D-CA), Ranking Member of the House Committee on Oversight and Government Reform, have hosted five public forums to receive testimony from whistleblowers and victims about lawless and abusive tactics used by federal immigration agents.
Blumenthal’s letter to Mullin is available here.
• Tech companies and all other publicly known donors to the Trump Ballroom: Blumenthal is leading an inquiry into Big Tech companies and others who may be seeking pay-to-play government favors from their donations to President Trump’s White House ballroom and other projects throughout the nation’s capital. Blumenthal has repeatedly sought answers from private donors to the ballroom project as well as raised concerns to White House Chief of Staff Susie Wiles about the ballooning costs associated with renovations to the White House and surrounding grounds, including the multi-million-dollar cost to taxpayers. Blumenthal’s letters to all publicly known donors to the Trump Ballroom project are available here.
• Federal Communications Commission (FCC) Chair Brendan Carr: In March 2025, Blumenthal opened an inquiry into the FCC’s abuse of power, including dubious investigations and misrepresentations of law to silence free speech. In September 2025, Blumenthal hosted a public forum with U.S. Senator Elizabeth Warren (D-MA) on the Trump Administration’s unprecedented efforts to use the FCC and government authority to chill First Amendment-protected speech and independent, fact-based news reporting.
Blumenthal’s letter to Carr is available here.