Though I condemn this sort of thing in any but the very most drastic cases, I would like to point out that, on the subject of Habeas Corpus, the President does have the constitutional right to suspend Habeas Corpus in a portion of the United States in what amounts to the interests of national security. I don't agree with Bush's use of that right, but he does have it.

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"When in the course of human events it becomes necessary for one people to dissolve the political bands which have connected them with another, and to assume among the powers of the earth, the separate and equal station to which the Laws of Nature and Nature's God entitle them, a decent respect to the opinions of mankind requires that they should declare the causes which impel them to the separation... We hold these truths to be self-evident, that all men are created equal, that they are endowed by their Creator with certain unalienable Rights, that among these are Life, Liberty and the pursuit of Happiness...."
- The Declaration of Independence