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Are They All Textualists Now?, Austin Peters

Northwestern University Law Review

Recent developments at the U.S. Supreme Court have rekindled debates over textualism. Missing from the conversation is a discussion of the courts that decide the vast majority of statutory interpretation cases in the United States—state courts. This Article uses supervised machine learning to conduct the first-ever empirical study of the statutory interpretation methods used by state supreme courts. In total, this study analyzes over 44,000 opinions from all fifty states from 1980 to 2019.

This Article establishes several key descriptive findings. First, since the 1980s, textualism has risen rapidly in state supreme court opinions. Second, this rise is primarily attributable …