Recently, Federalist No. 70 has become associated with Unitary Executive Theory, and has been invoked to support the claim that the president should have primary responsibility over the entire executive branch. This theory was particularly relevant to Justice Antonin Scalia's 1988 dissent in the Supreme Court Case Morrison v. Olson, in which he argued that an investigation of the executive branch by independent counsel was unconstitutional because criminal prosecution was purely an executive power, held in its entirety by the president. Scalia also cited Federalist No. 70 in his decision on Printz v. United States. Printz v. United States concerned the constitutionality of the Brady Handgun Violence Prevention Act, a federal law that would have obligated state law enforcement officers to help enforce federal gun regulations. Scalia argued: