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Union fees for political spending

Knox v. Service Employees International Union

Updated Nov 3, 2026

In brief

The Supreme Court overturned the Ninth Circuit's judgment and sent Knox's case back for further proceedings.

Where it stands
Decided

Decided 7-2 · June 21, 2012 · Opinion by Justice Alito

What it’s about
The case concerned whether California could require public employees to pay SEIU Local 1000 a special charge for political spending without notice and a chance to object, and whether it could require union fees for ballot-measure spending.
Who it affects
The case returns to the Ninth Circuit; the Supreme Court's stated action does not resolve whether California may require the challenged payments.

Summary: written with AI from the case record.

Illustration for Dianne Knox v. Service Employees International Union, Local 1000
Conceptual illustration · AI-generated

What it's about

The Supreme Court overturned the Ninth Circuit’s judgment and sent the case back for further proceedings (reversed and remanded).

The dispute concerns whether public employees can be required to fund union political spending through special charges or fees.

Question presented

1. May a State, consistent with the First and Fourteenth Amendments, condition employment on the payment of a special union assessment intended solely for political and ideological expenditures without first providing a notice that includes information about that assessment and provides an opportunity to object to its exaction? 2. May a State, consistent with the First and Fourteenth Amendments, condition continued public employment on the payment of union agency fees for purposes of financing political expenditures for ballot measures?

What the Court decided

Holding

Judgment reversed and case remanded. Alito, J., delivered the opinion of the Court, in which Roberts, C. J., and Scalia, Kennedy, and Thomas, JJ., joined. Sotomayor, J., filed an opinion concurring in the judgment, in which Ginsburg, J., joined. Breyer, J., filed a dissenting opinion, in which Kagan, J., joined.

Result
Reversed

The vote

  • Joined the judgment
  • Concurred in a separate opinion
  • Dissented
  • Wrote an opinion
Majority · 6joined the Court's opinion
  1. Thomas
  2. Scalia
  3. Kennedy
  4. Ginsburg
  5. Roberts
  6. Alitowrote the opinion
Concurring · 1agreed with the result, wrote separately
  1. Sotomayor
Dissenting · 2disagreed with the result
  1. Breyerwrote the dissent
  2. Kagan
7 justices joined the judgment (1 writing separately), 2 dissented.

What's next

The Ninth Circuit will continue the case. The eventual outcome is not specified in the Supreme Court's stated action.

Documents

2

Opinions

  • Knox

    Alito, Roberts, Scalxa, Kennedy, Thomas, Sotomayor, Ginsburg, Breyer, Kagan

Audio

View the full docket on supremecourt.gov

Docket activity

10
  • New analysis added

    Nov 3, 2026 · Court records

  • AI analysis generated: Impact Analysis

    Nov 3, 2026 · Generated

  • New analysis added

    Nov 3, 2026 · Court records

  • AI analysis generated: Case Briefing

    Nov 3, 2026 · Generated

  • AI analysis generated: Opinion Summary

    Nov 3, 2026 · Generated

Show 5 more
  • AI analysis generated: Decision Record

    Nov 3, 2026 · Generated

  • Case data updated: summary, question_presented, generation_metadata

    Nov 3, 2026 · Court records

  • Case data updated: question_presented, extraction_metadata

    Oct 17, 2026 · Court records

  • Audio Recording added: Oral Arguments - Dianne Knox v. Service Employees International Union, Local 1000

    Oct 30, 2014 · Court records

  • Opinion added: Knox

    Jun 21, 2012 · Court records

Sources

Primary materials plus reporting. Best-effort analysis: this explainer relies on a mix of primary materials and trusted secondary sources. Official filings and opinions remain authoritative.

Checked Nov 3, 2026Methodology

Court records and filings

Reporting and analysis