US Senator Richard Blumenthal is demanding answers from Tether about payments to the firm of Bo Hines, a former White House crypto adviser. The letters went out on Thursday, October 22. At issue is whether a company can pay someone who helped write the rules for stablecoins.
What exactly happened?
Blumenthal, the ranking Democrat on the Senate Permanent Subcommittee on Investigations, sent two letters. One went to Tether CEO Paolo Ardoino, the other to consulting company Nxum Group, which Hines started with his father and another partner. After leaving the White House, Hines became head of Tether's US arm.
The trigger was a Wall Street Journal report last week. According to the paper, Nxum received large payments for consulting work for Tether while Hines was still advising President Donald Trump on crypto. The senator wants documents showing the terms of that arrangement.
Why does this link look problematic?
To see the problem, recall Hines's role. Before joining Tether he worked in the White House and took part in drafting crypto legislation, including rules for stablecoin issuers. Tether issues the world's largest stablecoin, so every decision on those rules touched its business directly.
Stablecoin rules decide which reserves an issuer must hold, who supervises it and on what terms it can operate in the US. For a company with a huge token supply, that is a question of survival, not a formality.
Paying a consultant tied to a sitting official is risky in that position, because it is easy to read as an attempt to buy influence. That is exactly how the senator read it.
"The highly unusual terms and nature of Tether's business relationship with both Nxum and Bo Hines raise alarming ethical and legal concerns."
- Richard Blumenthal, US senator, from a letter to Paolo Ardoino dated October 22, 2026
In the same letter the senator writes that Tether was likely well aware that payments to a sitting White House official were illegal and improper.
How does the money connect to politics?
CoinDesk was the first to report another layer of the story. Nxum had little track record in politics, yet it earned millions of dollars as the main ad provider for a political action committee (PAC) associated with Tether. A PAC is a group that raises money for political advertising.
- Link one: Hines advises the White House on crypto regulation.
- Nxum, co-founded by Hines, receives consulting payments from Tether (per WSJ).
- Hines leaves government and takes over Tether's US business.
- Nxum keeps producing ads for the Tether-linked PAC (per CoinDesk).
So far all of this is press reporting and a senator's request. There is no court ruling.
What does Tether say?
The company confirmed it knows about the WSJ allegations. It says outside counsel already ran a detailed internal investigation and found no evidence of wrongdoing. Ardoino also criticized the senator's work this week, saying Blumenthal ignored important information and gave his report to the press before the company could read it or respond.
This is not their first clash. Blumenthal has watched crypto for a while, with Trump's memecoin, World Liberty Financial and Binance all on his list. With Tether he has separate threads. He published a report on its financial ties to Iran and recently demanded answers about its partnership with Cantor Fitzgerald.
Separately, Nxum hired another former White House crypto adviser, Harry Jung. The post Hines once held is empty now, since his successor Patrick Witt also left.
What comes next?
Letters are a request, not a penalty. Blumenthal is in the minority and cannot force Tether to answer. But the odds of Democrats winning the Senate have improved, and prediction market Kalshi now puts them at 69%. If Blumenthal ends up chairing the subcommittee, he gains the power to call witnesses and demand documents under subpoena, and crypto sits near the top of his agenda.
The letters themselves do not restrict issuance or circulation of USDT. Still, if the politics around the issuer worry you, you can compare offers and exchange USDT for hryvnia at the current rate.
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