Key Takeaways
- • Sen. Richard Blumenthal, the top Democrat on the Senate Permanent Subcommittee on Investigations, sent letters on Oct. 22, 2026 to Tether CEO Paolo Ardoino and Nxum Group seeking contracts, payment records, communications and lobbying information by Nov. 3, 2026.
- • A reported $6.3 million in Tether-funded revenue flowed to Nxum, the consultancy co-founded by former White House crypto adviser Bo Hines, according to a Wall Street Journal investigation as summarized in the coverage.
- • Blumenthal alleges Hines failed to divest a one-third Nxum stake while serving at the White House and that Tether coordinated Nxum's lobbying on the GENIUS Act, allegations the letters present as an inquiry rather than a finding of wrongdoing.
- • Tether says external counsel's in-depth internal investigation found no evidence of wrongdoing; a Nxum representative said Hines knew nothing of the Tether dealings while in government and had recused himself.
- • The letters request voluntary cooperation only; under subcommittee rules, subpoena authority rests with the chair or a member the chair designates, not the ranking Democrat.
Summary
Sen. Richard Blumenthal has requested records from Tether and Nxum Group concerning a reported $6.3 million arrangement funded by the stablecoin issuer and involving a consultancy co-founded by Bo Hines, the former White House crypto adviser who now runs Tether's U.S. arm. The letters, sent Oct. 22, 2026, seek contracts, payment records, communications and lobbying information, along with a breakdown of payment dates and methods. The letter to Tether was addressed to CEO Paolo Ardoino, and a separate request went to Nxum Group, which Hines set up with his father and another partner.
A Wall Street Journal investigation found that Nxum earned $6.3 million in Tether-funded revenue, according to the account summarized in the coverage. The payments allegedly began while Hines was helping shape stablecoin policy at the White House and continued after he left. The work covered strategic communications and public affairs. Hines served as executive director of the President's Council of Advisers on Digital Assets from January to August 2025, then became a strategic adviser at Tether and later CEO of Tether US. Blumenthal also asks why marketing firm Notorious and its CEO, Peter Vincer, acted as an intermediary and why Tether and Nxum began contracting directly after Hines left government. Harry Jung, another former White House crypto adviser, left government in July 2026 and joined Nxum as managing director in August.
Blumenthal alleges Hines failed to divest a one-third stake in Nxum while serving in the White House, and he describes the relationship as raising "alarming ethical and legal concerns." According to the senator, Hines used encrypted messaging apps to coordinate with Nxum on lobbying aimed at members of Congress weighing stablecoin legislation, specifically the GENIUS Act. The letter further alleges Tether coordinated Nxum's lobbying directly and that Ardoino urged the firm to "obliterate" the bill's opponents, allegations Cointelegraph quoted from the letter.
Tether said external counsel conducted an "in-depth internal investigation" that "found no evidence of wrongdoing," and acknowledged that the allegations in Blumenthal's letter originated with the Journal investigation. A Nxum representative told the Journal that Hines knew nothing about the firm's Tether dealings while in government, had recused himself from company business, and had no economic relationship with Tether during his White House service. The inquiry does not affect USDT redemption terms or reserve assets, according to the coverage.
The letters request voluntary cooperation by Nov. 3, 2026, the date of U.S. Election Day. Under subcommittee rules, the chair or a member the chair designates may issue subpoenas, and Blumenthal's ranking-member position alone does not carry that power. If Democrats regain the Senate, Blumenthal could chair the subcommittee and gain greater authority to compel records, though that depends on the election result and later committee decisions. The immediate developments to watch are the responses from Tether and Nxum, any disclosed business records, and further subcommittee action.
A Wall Street Journal investigation found that Nxum earned $6.3 million in Tether-funded revenue, according to the account summarized in the coverage. The payments allegedly began while Hines was helping shape stablecoin policy at the White House and continued after he left. The work covered strategic communications and public affairs. Hines served as executive director of the President's Council of Advisers on Digital Assets from January to August 2025, then became a strategic adviser at Tether and later CEO of Tether US. Blumenthal also asks why marketing firm Notorious and its CEO, Peter Vincer, acted as an intermediary and why Tether and Nxum began contracting directly after Hines left government. Harry Jung, another former White House crypto adviser, left government in July 2026 and joined Nxum as managing director in August.
Blumenthal alleges Hines failed to divest a one-third stake in Nxum while serving in the White House, and he describes the relationship as raising "alarming ethical and legal concerns." According to the senator, Hines used encrypted messaging apps to coordinate with Nxum on lobbying aimed at members of Congress weighing stablecoin legislation, specifically the GENIUS Act. The letter further alleges Tether coordinated Nxum's lobbying directly and that Ardoino urged the firm to "obliterate" the bill's opponents, allegations Cointelegraph quoted from the letter.
Tether said external counsel conducted an "in-depth internal investigation" that "found no evidence of wrongdoing," and acknowledged that the allegations in Blumenthal's letter originated with the Journal investigation. A Nxum representative told the Journal that Hines knew nothing about the firm's Tether dealings while in government, had recused himself from company business, and had no economic relationship with Tether during his White House service. The inquiry does not affect USDT redemption terms or reserve assets, according to the coverage.
The letters request voluntary cooperation by Nov. 3, 2026, the date of U.S. Election Day. Under subcommittee rules, the chair or a member the chair designates may issue subpoenas, and Blumenthal's ranking-member position alone does not carry that power. If Democrats regain the Senate, Blumenthal could chair the subcommittee and gain greater authority to compel records, though that depends on the election result and later committee decisions. The immediate developments to watch are the responses from Tether and Nxum, any disclosed business records, and further subcommittee action.
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