U.S. Senator Cynthia Lummis has expressed significant concerns regarding the Biden administration's approach to regulating Bitcoin and decentralized finance. Lummis criticized the Department of Justice (DOJ) for what she perceives as criminalizing core aspects of the Bitcoin network, particularly non-custodial software that allows individuals to hold their own keys and run their own nodes. She emphasized her commitment to fighting for the rights of individuals to manage their own cryptocurrency assets, stating that the DOJ's 'hyper-aggressive' stance conflicts with existing Treasury guidance and undermines the rule of law.