Key Takeaways:
- Lummis's BITCOIN Act proposes buying 1 million BTC over five years
- The reserve would be held for at least 20 years
- Model suggests it could cut the national debt by up to half
Key Takeaways:

Senator Cynthia Lummis's BITCOIN Act, formally designated S. 954, directs the Treasury to purchase 1 million Bitcoin over five years — roughly 5 percent of the total possible supply of 21 million coins — and hold the assets for a minimum of 20 years. The Wyoming Republican has modeled scenarios suggesting the position could reduce the $36 trillion national debt by one-third to one-half, or eliminate it entirely under optimistic price assumptions. The national debt ranges between $36 trillion and $39.2 trillion depending on the accounting period referenced.
"Bitcoin's fixed supply and long-term price trajectory make it a credible fiscal tool, not just a speculative asset for retail traders," Lummis said on June 16, arguing the structure is deliberately modeled on the gold reserves the US government already holds.
The legislation has companion bills including the CLARITY Act, which Lummis said is "moving in July" and aims to establish clearer jurisdictional lines between the Securities and Exchange Commission and the Commodity Futures Trading Commission for digital assets. President Trump's executive order earlier in 2025 directing agencies to explore a national digital asset stockpile gave the concept political momentum at the executive level, making Lummis's Senate push feel less like fringe advocacy and more like policy coordination.
A US government commitment to acquire 1 million Bitcoin would represent one of the largest single buyer mandates in the asset's history, potentially reshaping global crypto markets. The 20-year minimum holding period is designed to mitigate concentration risks, though legislative commitments remain subject to political shifts.
The legislation, which has a co-sponsorship list and a floor hearing history, would establish a decentralized secure reserve structure similar to the US gold reserve program. Lummis has tied the proposal to broader US competitiveness, framing the reserve as a way to make the country a leader in crypto adoption rather than a cautious observer. Several other nations have begun accumulating Bitcoin at the sovereign level, though none have proposed a position of this scale relative to total supply. The US debt burden has been a persistent fiscal concern across administrations, with annual interest payments on the national debt consuming a growing share of the federal budget.
A government holding 5 percent of Bitcoin's supply introduces concentration concerns and potential market manipulation questions that run in both directions. If the reserve were ever liquidated, the downward price impact would be severe. The 20-year minimum holding period is designed to address this, though legislative commitments can shift when political winds change.
Lummis has pushed back against critics including JPMorgan Chase Chief Executive Officer Jamie Dimon, who has been a vocal skeptic of Bitcoin. The senator's office has not disclosed a specific timeline for a floor vote on S. 954, though the bill's progression through committee will be closely watched by market participants tracking the sovereign adoption narrative.
This article is for informational purposes only and does not constitute investment advice.