Summary

Portrait of William J. Brennan William J. Brennan Nixon v. Administrator of General Services…

Not only, as we have shown, is the federal power over external affairs in origin and essential character different from that over internal affairs, but participation in the exercise of the power is significantly limited. In this vast external realm, with its important, complicated, delicate and manifold problems, the President alone has the power to speak or listen as a representative of the nation. He makes treaties with the advice and consent of the Senate, but he alone negotiates. Into the field of negotiation the Senate cannot intrude; and Congress itself is powerless to invade it.
Source: Wikisource

Portrait of William J. Brennan William J. Brennan Nixon v. Administrator of General Services…

Unfortunately, however, today's decision countenances the power of any future Congress to seize the official papers of an outgoing President as he leaves the inaugural stand. In so doing, it poses a real threat to the ability of future Presidents to receive candid advice and to give candid instructions. This result, so at odds with our previous case law on the separation of powers, will daily stand as a veritable sword of Damocles over every succeeding President and his advisers.
Source: Wikisource

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