Yesterday’s oral argument in Beckles v. United States found the justices wrestling with retroactivity and vagueness in the context of the U.S. Sentencing Guidelines. The petitioner, Travis Beckles, ...

Paul was a Senior Legal Research Fellow in the Meese Center for Legal and Judicial Studies at The Heritage Foundation. The Void-for-Vagueness Doctrine bars using a criminal law to enforce a statute ...

This column contains references to abortion and sexual assault that may be troubling to some readers. Abortion is one of the most ethically complex issues that we face, in part because it involves a ...

Although scientists strive for increasing clarity in their measurements and concepts, it is often uncertainty that spurs new thinking. The haziness of the species notion set the young Charles Darwin ...