Executive & agency power: how each Justice has voted

Presidential power, the separation of powers, and judicial review of agency action. 229 cases since 1946 in the Supreme Court Database (plus OT2025 from our records). The Court hears few cases on this issue each term, so the chart shows each sitting Justice's career-to-date share of votes on the liberal side: each point counts every vote on this issue from their first through that term (shown from their 5th vote).

Who moved?

No Justice shows a statistically detectable change on this issue between the first and second halves of their tenure.

first vs second half of tenure, relative lean, permutation test; shift if Benjamini-Hochberg q < 0.1 across all tests; >= 12 votes in each half, >= 6 terms. "Lean" compares each vote with the Court's majority in the same case (+ more liberal, − more conservative), so it is not driven by which cases the Court chose to hear. Justices with short tenures or few votes on an issue are not tested.

The nine Justices on executive & agency power
JusticeVotesLiberal sideLean vs CourtOpinions written
Amy Coney Barrett 1457% +0.074
Clarence Thomas 6149% +0.0723
Samuel A. Alito Jr. 3465% +0.068
Elena Kagan 2962% +0.0310
Neil M. Gorsuch 2162% 0.0010
Brett M. Kavanaugh 1958% 0.004
John G. Roberts Jr. 3456% -0.0315
Sonia Sotomayor 3253% -0.068
Ketanji Brown Jackson 933% -0.224
Landmark cases
CaseJr.ThomasJr.SotomayorKaganGorsuchKavanaughBarrettJackson
Chevron U. S. A. Inc. v. Natural Resources Defense Council, Inc., et al. (OT1983, conservative outcome)—————————
Seila Law LLC v. Consumer Financial Protection Bureau (OT2019, liberal outcome)L✎L✎LCC✎LL——
West Virginia v. Environmental Protection Agency (OT2021, conservative outcome)C✎CCLL✎C✎CC—
Loper Bright Enterprises v. Raimondo (OT2023, conservative outcome)C✎C✎CLL✎C✎CC—
Trump v. United States (OT2023, liberal outcome)L✎L✎LC✎CLLL✎C✎

L = liberal side, C = conservative side (Supreme Court Database coding); ✎ = wrote an opinion; — = not on the Court.

Source: Supreme Court Database (Spaeth et al.) votes through OT2024; OT2025 from our decision records. Direction coding follows the Supreme Court Database, which classifies, e.g., pro-defendant, pro-civil-liberties and pro-regulation outcomes as liberal; it is a convention, not a judgment.

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