On Wednesday, May 6, 2026, Senator Elizabeth Warren sent a letter to Meta CEO Mark Zuckerberg, expressing significant concerns over the company’s reported plans to integrate a stablecoin into its platforms for transactions.

Warren, Ranking Member of the Senate Banking, Housing, and Urban Affairs Committee, stated that any effort by Meta to control, influence, or favor a stablecoin, even one issued by a third party, could have serious repercussions for competition, privacy, the integrity of the U.S. payments system, and overall financial stability. She emphasized the critical need for Congress to fully understand these implications as it considers legislation for the cryptocurrency market.

This is not Meta’s first foray into stablecoin-related ventures. In 2019, the company announced its ambitious stablecoin project, Libra, which ultimately faced substantial bipartisan opposition from lawmakers, regulators, and international financial authorities, leading to its abandonment due to a lack of trust and regulatory approval.

Senator Warren had previously warned that legislation, such as the GENIUS Act, contained loopholes that could permit large technology firms like Meta to re-enter the stablecoin arena with minimal oversight. In her latest communication, she detailed how Meta could leverage such a structure to circumvent regulatory scrutiny, amass greater economic power, and further compromise financial privacy and market competition.

The Senator’s current concerns are a continuation of inquiries initiated in June 2025, when she and Senator Blumenthal raised alarms about reports suggesting Meta was reviving efforts to establish its own private currency, structured as a stablecoin. At that time, Meta responded to the lawmakers by asserting that it had no plans to issue its own stablecoin and that no such entity existed within the company.

However, Warren noted that Meta did not provide details regarding its stablecoin plans, including the nature of any potential commercial partnerships with third-party stablecoin issuers for platform integration, or the extent of direct or indirect control Meta might exert over such a stablecoin. Furthermore, the company failed to disclose whether it intended to modify its MetaPay wallet to allow users to hold stablecoins as funds, rather than solely for storing payment credentials.

With new reports confirming that Meta is actively conducting stablecoin trials and intends to proceed with full integration in the latter half of 2026, Senator Warren has formally requested answers from the company. She stressed the imperative for Meta to be transparent with both Congress and the public regarding its stablecoin initiatives.

Warren concluded by highlighting Meta’s past difficulties in safely managing its existing products and services, as well as the failure of its previous attempt to launch a global private currency, suggesting that any new financial products from the company should be met with skepticism.