Our protection against all kinds of fanatics and extremists, none of whom can be trusted with unlimited power over others, lies not in their forbeara… - Robert H. Jackson

I used to say that, as Solicitor General, I made three arguments in every case. First came the one I had planned – as I thought, logical, coherent, complete. Second was the one actually presented – interrupted, incoherent, disjointed, disappointing. The third was the utterly devastating argument that I thought of after going to bed that night…

The plans of Adolf Hitler for aggression were just as secret as Mein Kampf, of which over six million copies were published in Germany. He not only openly advocated overthrowing the Treaty of Versailles, but made demands which went far beyond a mere rectification of its alleged injustices (GB-128). He avowed an intention to attack neighboring states and seize their lands, which he said would have to be won with "the power of a triumphant sword." Here, for every German to hearken to, were the "ancestral voices prophesying war."

Nothing in our Constitution is plainer than that declaration of a war is entrusted only to Congress. Of course, a state of war may in fact exist without a formal declaration. But no doctrine that the Court could promulgate would seem to me more sinister and alarming than that a President whose conduct of foreign affairs is so largely uncontrolled, and often even is unknown, can vastly enlarge his mastery over the internal affairs of the country by his own commitment of the Nation's armed forces to some foreign venture.