Guest Essayist: Allen Guelzo

On April 27, 1861, President Abraham Lincoln took one of the most dramatic steps ever taken by an American chief executive, and suspended the privilege of the writ of habeas corpus. He did so, under a provision in Article 1, section 9 of the Constitution: The Privilege of the Writ of Habeas Corpus shall not be suspended, unless when in Cases of Rebellion or Invasion the public Safety may require it. But the rationale for the suspension, as well as the significance of the suspension itself, caused the most profound constitutional conflict in American history.

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