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The Causation Canon, Sandra F. Sperino

Faculty Publications

It is rare to witness the birth of a canon of statutory interpretation. In the past decade, the Supreme Court created a new canon-the causation canon. When a statute uses any causal language, the Court will assume that Congress meant to require the plaintiff to establish "but-for" cause.

This Article is the first to name, recognize and discuss this new canon. The Article traces the birth of the canon, showing that the canon did not exist until 2013 and was not certain until 2020. Demonstrating how the Court constructed this new canon yields several new insights about statutory interpretation.

The …