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Merkley and Warren wrote in their letter to Office of Government Ethics Acting Director Jamieson Greer, “In short, a crypto firm whose founder needs a pardon and a US Senator Elizabeth Warren has penned an open letter to US President-elect Donald Trump’s pick to lead the US Treasury, urging him to evaluate stricter regulations Highlighting concerns over cryptocurrency’s role in terrorism, the letter, addressed to key figures including Treasury Under Secretary for Terrorism Brian Nelson and National Security Advisor In September 2025, Senator Warren sent a letter to Treasury Secretary Janet Yellen calling on the Treasury Department and the Financial Stability Oversight Council In a letter to top U.S. security officials, 102 lawmakers demanded to know what the Treasury Department and others are doing to prevent the use of crypto to finance Massachusetts Senator Elizabeth Warren has urged incoming U.S. Treasury Secretary Scott Bessent to impose tighter regulations on crypto to combat illicit activities and US Senator Elizabeth Warren, along with over 100 legislators, has written a letter to the White House addressing concerns over crypto’s role in terrorism. The letter The letter, dated Oct. 17, was addressed to Treasury Under Secretary for Terrorism and Financial Intelligence Brian Nelson and National Security Advisor Jake Sullivan. Senator Warren noted that a key provision from Treasury’s November 2025 letter would apply anti-money laundering and combating the financing of terrorism (AML/CFT)

Senator Warren Leads Charge: Legislators Demand Action on Crypto Terrorism

US Senator Elizabeth Warren, along with over 100 legislators, has written a letter to the White House addressing concerns over crypto’s role in terrorism. The letter highlights a growing worry in Washington: the potential for cryptocurrencies to be used to finance illicit activities and, more specifically, terrorism. Massachusetts Senator Elizabeth Warren has urged incoming U.S. Treasury Secretary Scott Bessent to impose tighter regulations on crypto to combat illicit activities.

The letter, dated Oct. 17, was addressed to Treasury Under Secretary for Terrorism and Financial Intelligence Brian Nelson and National Security Advisor Jake Sullivan. In a letter to top U.S. security officials, 102 lawmakers demanded to know what the Treasury Department and others are doing to prevent the use of crypto to finance terrorism.

Senator Warren\'s persistent focus on this issue is evident. In September 2025, Senator Warren sent a letter to Treasury Secretary Janet Yellen calling on the Treasury Department and the Financial Stability Oversight Council to take a stronger stance against crypto\'s use in illicit finance. Senator Warren noted that a key provision from Treasury’s November 2025 letter would apply anti-money laundering and combating the financing of terrorism (AML/CFT) measures to the digital asset space.

The urgency of the situation is underscored by past events. Merkley and Warren wrote in their letter to Office of Government Ethics Acting Director Jamieson Greer, “In short, a crypto firm whose founder needs a pardon and a US Senator Elizabeth Warren has penned an open letter to US President-elect Donald Trump’s pick to lead the US Treasury, urging him to evaluate stricter regulations." The concern extends beyond simply regulating crypto exchanges; it\'s about preventing the flow of funds to terrorist organizations.

The letter emphasizes the need for the Treasury Department to aggressively utilize its existing authorities and explore new legislative options to combat crypto terrorism. The letter calls for clear regulations and robust enforcement mechanisms to prevent cryptocurrencies from becoming a safe haven for terrorist financing. The lawmakers are pushing for proactive measures to stay ahead of potential threats and protect national security.

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