Circle's president tells Congress dollar stablecoins protect US dominance

Heath Tarbert, Circle's president and a former top US financial regulator, testified before Congress on the role dollar-pegged stablecoins can play in preserving US dollar supremacy, Crypto Briefing reports.

• Tarbert chaired the Commodity Futures Trading Commission from 2019 to 2021 and held multiple US Treasury positions before that; he joined Circle in 2023 as chief legal officer and became president in February 2025
• His testimony rests on one thesis: the global financial system is moving online, and dollar dominance won't survive that migration unless dollar-backed stablecoins carry it forward
• He has long argued a trustworthy stablecoin needs three things: a credible, regulated issuer, reserves made of high-quality liquid assets, and transparent, regularly reported backing for every token in circulation
• Those principles track closely with the proposed GENIUS Act, the federal framework for US stablecoin issuers that Tarbert has pushed as a precondition for serious institutional adoption

The subtext is competitive as much as it is regulatory. Tether's USDT remains the largest stablecoin by market capitalization, but it has faced persistent questions about reserve transparency and regulatory standing. Circle has spent years positioning USDC as the institutionally palatable alternative, built on regular audits and compliance with existing financial rules, and Tarbert's testimony continues that pitch from inside the room where the rules get written. In interviews earlier this year, he framed USDC as a cash equivalent institutions could hold on their balance sheets, and pointed to Circle's engagement with regulators outside the US, including in the UK, as evidence the compliance-first approach travels beyond American borders.stablecoin by market capitalization, but it has faced persistent questions about reserve transparency and regulatory standing. Circle has spent years positioning USDC as the institutionally palatable alternative, built on regular audits and compliance with existing financial rules, and Tarbert's testimony continues that pitch from inside the room where the rules get written. In interviews earlier this year, he framed USDC as a cash equivalent institutions could actually hold on their balance sheets, and pointed to Circle's engagement with regulators outside the US, including in the UK, as evidence the compliance-first approach travels beyond American borders.

The timing lines up with a wave of stablecoin issuers racing toward the same compliance bar. A consortium of 21 international banks, including Goldman Sachs and UBS, is building its own joint stablecoin designed around the GENIUS Act framework Tarbert is defending, while Tether has two years to bring USDT into compliance or risk losing access to the US market Circle is fighting to define. A framework that once looked theoretical is turning into the actual battlefield stablecoin issuers are positioning for.

Circle's compliance-first bet only pays off if the GENIUS Act passes largely as written and regulators enforce it the way Tarbert describes, and neither is settled yet. A former CFTC chairman now runs the company arguing for that outcome, which gives Circle a seat at the table most stablecoin issuers can only lobby from outside. Testifying in the room where the rules get written is still worth more than watching from the sidelines.

This piece is informational, not a recommendation to buy, sell, or hold any asset.