Senator Blumenthal Demands Update on Binance Oversight Amid Iran Sanctions Investigation
Senator Richard Blumenthal has raised concerns regarding what he describes as "mounting allegations of dangerously lax anti-money laundering prevention by Binance" in a formal letter.
Senator Richard Blumenthal from Connecticut has raised questions with US regulatory authorities who are tasked with monitoring Binance, inquiring about the cryptocurrency exchange's adherence to anti-money laundering regulations and sanctions requirements as mandated by its court-supervised monitoring arrangement established in 2023.
A Fortune report released on Friday revealed that Blumenthal dispatched correspondence to both the Justice Department and FinCEN, the Financial Crimes Enforcement Network division of the US Treasury, requesting comprehensive information regarding Binance's regulatory compliance efforts.
In 2023, Binance along with its previous chief executive Changpeng "CZ" Zhao negotiated an agreement that included the cryptocurrency platform paying $4.3 billion as settlement for civil regulatory enforcement proceedings, while CZ entered a guilty plea to a single felony charge.
The settlement agreement additionally mandated that Binance undergo monitoring and fulfill reporting obligations overseen by United States government officials.
In his correspondence, Blumenthal expressed worry over "mounting allegations of dangerously lax anti-money laundering prevention by Binance." According to Fortune's reporting, representatives from both the DOJ and FinCEN who are charged with supervising the exchange under the terms of the settlement declined to provide any statement.
The senator's letter came in the wake of news reports indicating that Binance has come under investigation concerning sanctions that the United States has imposed against Iran.
According to reports, the cryptocurrency platform terminated employees who were responsible for informing Binance leadership that approximately $1 billion had been processed through the exchange to organizations connected to Iran. However, a representative speaking on behalf of the exchange has rejected these allegations.
During February, a coalition of senators called upon Treasury Secretary Scott Bessent along with former Attorney General Pamela Bondi, who was removed from her position by US President Donald Trump in April, to conduct a "prompt, comprehensive review" examining Binance's compliance control mechanisms.
Scrutiny continues over Trump-Binance connections
Certain members of the US Congress have claimed that relationships between Binance and Trump generate potential conflicts of interest affecting the US President and his family's cryptocurrency business ventures.
During March 2025, a business entity based in the United Arab Emirates acquired a $2 billion ownership position in Binance utilizing the USD1 stablecoin that is issued by World Liberty Financial, the enterprise co-established by Trump and his sons.
Additionally, Trump granted a pardon to Binance's former chief executive, CZ, in October 2025 following his completion of a four-month prison sentence that was part of his 2023 guilty plea arrangement.