Position One: The president has the authority to launch war unilaterally — without any authorization from Congress — in the absence of an attack, or even a threat of aggression, against the United States; and he may do so by invading a country with which the United States is not only at peace but in alliance — a counterterrorism alliance subsidized by American taxpayers.
Position Two (and this one is worth quoting): “The president does not have power under the Constitution to unilaterally authorize a military attack in a situation that does not involve stopping an actual or imminent threat to the nation.”
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