ReillyT
Senior Member
The [General Welfare] clause confers a power separate and distinct from those later enumerated [,] is not restricted in meaning by the grant of them, and Congress consequently has a substantive power to tax and to appropriate, limited only by the requirement that it shall be exercised to provide for the general welfare of the United States. It results that the power of Congress to authorize expenditure of public moneys for public purposes is not limited by the direct grants of legislative power found in the Constitution.
United States v. Butler, 297 U.S. 1 (1936)