Warren Demands Zuckerberg Answer on Meta Stablecoin Trial

Sen. Elizabeth Warren asked Meta CEO Mark Zuckerberg to provide full details by May 20 on a “small and focused” stablecoin trial after the company began paying selected creators in USDC. The payments took place in the Philippines and Colombia in April, according to Warren’s letter.

Warren requested the trial’s planned launch date, which stablecoins would be used, and the identities of any third-party stablecoin issuers that would participate. She also asked for the trial’s geographic scope and size, descriptions of technical protections, privacy safeguards, consumer protections and measures to ensure regulatory compliance.

In a Wednesday letter to Zuckerberg, Warren described Meta’s lack of transparency about its stablecoin plans as “deeply troubling.” She linked the inquiry to Meta’s past attempt to issue a global private currency under the Libra name, later rebranded to Diem. “It is critical that Meta be transparent with Congress and the public regarding its stablecoin-related plans,” Warren wrote.

Warren is the ranking member on the Senate Banking Committee, the panel that oversees agencies including the Securities and Exchange Commission. Her request comes as Congress debates a proposed digital-asset market structure bill known as the CLARITY Act. Lawmakers recently reported a compromise on stablecoin yield rules that could allow the bill to advance to a committee markup, though other provisions remain under negotiation.

Warren’s letter seeks technical and privacy details and asks whether Meta plans to rely on external stablecoin networks or build its own infrastructure. The senator also asked for information on consumer protections and compliance steps Meta would take if it expands stablecoin use.

Meta has not released a public roadmap for a broader stablecoin rollout beyond the creator payouts. Warren’s letter referenced reports tying the trial to a potential 2026 stablecoin integration and requested clarity ahead of any wider launch.