The impact of the elastic clause, also known as the Necessary and Proper Clause, on U.S. governance has been significant. Found in Article I, Section 8 of the Constitution, it grants Congress the authority to pass laws deemed necessary to implement its enumerated powers. This clause has been a critical factor in expanding federal power, allowing for a flexible interpretation of legislative authority. Landmark Supreme Court cases, such as McCulloch v. Maryland, reinforced the broad application of the elastic clause, enabling Congress to adapt to changing circumstances. As a result, it has facilitated the growth of federal government functions and responsibilities throughout U.S. history.