Revenge of Article III
We’ve talked about this in threads, but I just wanted to pull out all the bits of Anthony Kennedy’s opinion that really address separation of powers and rule of law, in addition the question of Gitmo and Habeas more directly. Kennedy bases much of his argument on separation of powers on the reminder that since Marbury v. Madison, it has been the Court’s duty–and not that of Congress or the President–to determine what the law is.
Our basic charter cannot be contracted away like this [claiming the US had no sovereignty over Gitmo because we ceded it to Cuba then leased it back]. The Constitution grants Congress and the President the power to acquire, dispose of, and govern territory, not the power to decide when and where its terms apply. Even when the United States acts outside its borders, its powers are not “absolute and unlimited” but are subject “to such restrictions as are expressed in the Constitution.” Murphy v. Ramsey, 114 U. S. 15, 44 (1885). Abstaining from questions involving formal sovereignty and territorial governance is one thing. To hold the political branches have the power to switch the Constitution on or off at will is quite another. The former position reflects this Court’s recognition that certain matters requiring political judgments are best left to the political branches. The latter would permit a striking anomaly in our tripartite system of government, leading to a regime in which Congress and the President, not this Court, say “what the law is.” Marbury v. Madison, 1 Cranch 137, 177 (1803).
Within that context, he describes habeas corpus as a mechanism which has been historically designed to check the power of the political branches.
These concerns have particular bearing upon the Suspension Clause question in the cases now before us, for the writ of habeas corpus is itself an indispensable mechanism for monitoring the separation of powers. The test for determining the scope of this provision must not be subject to manipulation by those whose power it is designed to restrain.
As such, only the Court can determine the proper boundaries of habeas corpus, not Congress or the President.