U.S. Senators Bill Cassidy (R-La.) and Cynthia Lummis (R-Wyo.) have introduced the American Made Mining Act, a proposal that would both write President Trump's executive order establishing a Strategic Bitcoin Reserve into law and push the U.S. crypto-mining industry to cut ties with China-centric hardware supply chains. The legislation is framed around a stark imbalance: the United States accounts for about 38% of global Bitcoin hashing power, yet roughly 97% of the mining hardware comes from China. Backers argue the gap leaves a critical piece of digital infrastructure exposed to geopolitical risk. Key provisions in the bill include: 1) A voluntary "Made in America" certification program: The Department of Commerce would be directed to create an optional certification for cryptocurrency mining facilities and mining pools. 2) A phased retirement of gear tied to foreign adversaries: Certified participants would be required to gradually decommission mining equipment produced by companies linked to foreign adversaries. 3) Use of existing federal programs to support the shift: The certification effort would be integrated into current federal energy and rural initiatives, avoiding new spending authorizations. 4) Support for domestic manufacturing of mining hardware: The National Institute of Standards and Technology and the Manufacturing Extension Partnership would assist U.S. manufacturers in developing more secure and energy-efficient mining equipment. 5) Statutory basis for a Strategic Bitcoin Reserve: The bill would establish a Bitcoin strategic reserve within the Department of the Treasury. Cassidy said digital asset mining is an important part of the U.S. economy and argued the measure would strengthen supply chains, support domestic manufacturing, and reinforce the sector's long-term footing. Lummis said the legislation aligns with Trump's pledge to make the United States a global hub for digital assets. The American Made Mining Act is backed by the Satoshi Action Fund. Dennis Porter, the organization's CEO and co-founder, said U.S. ambitions in Bitcoin leadership require insulating the mining supply chain from adversaries' influence.