Major banks and business groups in the United States have filed a lawsuit against the Federal Reserve, challenging the annual 'stress tests' mandated by the Dodd-Frank Act. The lawsuit argues that the Federal Reserve has not allowed adequate public input in designing these tests, which the plaintiffs claim are overly harsh and lack transparency. This legal action reflects a growing trend of the banking industry contesting the regulatory authority of the Fed, particularly in light of recent Supreme Court rulings that have limited administrative powers. The case underscores ongoing tensions between the banking sector and regulators regarding the oversight and evaluation of financial institutions.