Senator Blumenthal Probes Tether Over $6.3M Deal With Ex-White House Aide

US Senator Richard Blumenthal has demanded records from Tether CEO Paolo Ardoino covering a reported $6.3 million deal between the stablecoin issuer and Nxum, a marketing firm co-founded by former White House crypto adviser Bo Hines. The Connecticut Democrat, ranking member of the Senate Permanent Subcommittee on Investigations, sent the letter on Thursday. It lands after a Wall Street Journal report on the arrangement.

The request is precise in its scope. Blumenthal wants "records and information related to contracts, payments, communications, and lobbying" between Tether and Nxum. He frames the inquiry as part of a broader look at what he calls the Trump administration's "self-enrichment and self-dealings with cryptocurrency firms."

What does the letter actually allege?

The core accusation is coordination. According to Blumenthal, Hines held a one-third stake in Nxum while serving in government and never divested it. And during that period, he allegedly worked with the company over encrypted messaging apps.

"While Hines failed to divest his one-third stake in Nxum, he worked closely over encrypted messaging applications with Nxum to coordinate lobbying, advocacy, and browbeating of members of Congress that were opposed to, or had sought changes to, pending stablecoin legislation," Blumenthal wrote.

The senator goes further on Tether's role. He said the reported messages show the company was "directly coordinating Nxum's lobbying efforts on the GENIUS Act," the stablecoin legislation that ultimately set the regulatory framework for the industry. Blumenthal wrote that Ardoino demanded Nxum "obliterate" the bill's opponents.

Blumenthal's assessment of the arrangement is blunt. "The highly unusual terms and nature of Tether's business relationship with both Nxum and Bo Hines raise alarming ethical and legal concerns, indicating that Tether was likely well aware of the illegality and impropriety of issuing payments to a current White House official with such a direct role in shaping cryptocurrency legislation that was instrumental to its business," he said.

Who moved where, and when?

The personnel trail matters here. It shows how thin the line between regulator and regulated has become.

• Hines served as executive director of the President's Council of Advisers on Digital Assets from January to August 2025.
• He then left the White House and joined Tether as a "strategic adviser."
• He later became CEO of Tether US.
• Harry Jung, another crypto adviser in the Trump administration, left his post in July 2026 and joined Nxum as a managing director in August.

Cointelegraph reached out to Tether for comment on the investigation and the WSJ report but did not receive an immediate response.

The wider conflict-of-interest backdrop

This inquiry doesn't sit alone. Trump, his family and members of his administration continue to face scrutiny over accusations that they reap financial windfalls from crypto policies and laws they control or influence. The president disclosed earning $1.4 billion from crypto-related investments in 2025.

For Tether specifically, the stakes are operational, not just reputational. The company issues the largest dollar-pegged stablecoin in circulation, and its business model now depends heavily on the GENIUS Act's licensing and reserve rules. Allegations that it paid a sitting official who shaped that very legislation invite exactly the kind of congressional and regulatory attention an issuer wants to avoid.

What does this change for Tether in the near term? Mostly document production and exposure risk. Blumenthal's request is a demand for records, not a subpoena with enforcement teeth — at least not yet.

Why the midterms could sharpen this probe

Blumenthal currently has limited authority as the panel's ranking member. That calculus could shift on Nov. 3, US Election Day. The 2026 midterms could flip party control of the House and Senate, and a Democratic majority would hand Blumenthal and his colleagues stronger investigative powers over the administration's crypto ties, including those presenting potential conflicts of interest.

Prediction markets already lean that way. As of Friday, event contracts on Kalshi gave Democrats a 92% chance of retaking the House and a 68% chance of taking the Senate for the 2027 Congress. Polymarket's contracts similarly favored Democrats retaking both chambers.

So the immediate deadline is Tether's — producing the records Blumenthal wants on contracts, payments and lobbying contacts with Nxum. The longer window is electoral. If control of Congress flips in November, what is now a letter from a ranking member could become a subpoena from a chairman, and Tether's lobbying conduct during the GENIUS Act fight would face a far more adversarial examination.