The Congress shall have power to lay and collect taxes on incomes, from whatever source derived, without apportionment among the several states, and without regard to any census or enumeration. What is one way the constitutional amendment excepted above supports the expansion of America's free enterprise system It gave the federal government the power to impose a tax. It contributed to a long-term decline in America's GDP. It gave the states the power to tax the national government. It established the IRS.