MURDER, POLITICS, AND THE END OF THE JAZZ AGE
by Michael Wolraich
Kerr's analysis: "The Necessary and Proper Clause allows Congress to take steps beyond those listed in the Constitution to achieve its Constitutional ends, including the regulation of interstate commerce. Hudson's argument wipes a key part of the Constitution out of existence. Kerr says Hudson "rendered [it] a nullity."
His analysis is short but pertinent.