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
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 February 17, 2025, from https://www.statista.com/statistics/1323015/supreme-court-justices-ideological-scores-us/?__sso_cookie_checker=failed
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 February 17, 2025. https://www.statista.com/statistics/1323015/supreme-court-justices-ideological-scores-us/?__sso_cookie_checker=failed
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: February 17, 2025. https://www.statista.com/statistics/1323015/supreme-court-justices-ideological-scores-us/?__sso_cookie_checker=failed
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/?__sso_cookie_checker=failed
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/?__sso_cookie_checker=failed (last visited February 17, 2025)
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/?__sso_cookie_checker=failed