For the 2022 Supreme Court term, it is estimated that Justice Samuel Alito was ranked as the most conservative justice by the Martin-Quinn scores method. Justice Sonia Sotomayor was ranked as the most liberal. The 2022 Supreme Court consisted of six conservative justices, and three liberal.
Martin-Quinn ideological scores of Supreme Court justices in the United States from 2005 to 2022
Characteristic
Anthony Kennedy
Antonin Scalia
Clarence Thomas
David Souter
John Roberts
John Paul Stevens
Ruth Bader Ginsburg
Samuel Alito
Sandra Day O'Connor
Stephen Breyer
Sonia Sotomayor
Elena Kagan
Neil Gorsuch
Brett Kavanaugh
Amy Coney Barrett
Ketanji Brown Jackson
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Martin-Quinn scores, or MQ scores, are dynamic metrics used to gauge the ideology of a U.S. Supreme Court Justice based on their voting record. A jurist's score will continuously change as each judicial decision they make creates a new data point to be input into the model. MQ scores theoretically have no minimum or maximum values, but scores generally fall between -5 and 5. A negative number indicates a tendency towards liberalism, while a positive score indicates a tendency towards conservatism.
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Martin-Quinn Scores, & Axios. (July 3, 2023). Martin-Quinn ideological scores of Supreme Court justices in the United States from 2005 to 2022 [Graph]. In Statista. Retrieved July 22, 2024, from https://www.statista.com/statistics/1323015/supreme-court-justices-ideological-scores-us/
Martin-Quinn Scores, und Axios. "Martin-Quinn ideological scores of Supreme Court justices in the United States from 2005 to 2022." Chart. July 3, 2023. Statista. Accessed July 22, 2024. https://www.statista.com/statistics/1323015/supreme-court-justices-ideological-scores-us/
Martin-Quinn Scores, Axios. (2023). Martin-Quinn ideological scores of Supreme Court justices in the United States from 2005 to 2022. Statista. Statista Inc.. Accessed: July 22, 2024. https://www.statista.com/statistics/1323015/supreme-court-justices-ideological-scores-us/
Martin-Quinn Scores, and Axios. "Martin-quinn Ideological Scores of Supreme Court Justices in The United States from 2005 to 2022." Statista, Statista Inc., 3 Jul 2023, https://www.statista.com/statistics/1323015/supreme-court-justices-ideological-scores-us/
Martin-Quinn Scores & Axios, Martin-Quinn ideological scores of Supreme Court justices in the United States from 2005 to 2022 Statista, https://www.statista.com/statistics/1323015/supreme-court-justices-ideological-scores-us/ (last visited July 22, 2024)
Martin-Quinn ideological scores of Supreme Court justices in the United States from 2005 to 2022 [Graph], Martin-Quinn Scores, & Axios, July 3, 2023. [Online]. Available: https://www.statista.com/statistics/1323015/supreme-court-justices-ideological-scores-us/
