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Racial bias in jury deliberations

Pena-Rodriguez v. Colorado

Updated Oct 19, 2026

In brief

Colorado's rule must give way when a juror clearly says racial stereotypes or hostility drove a guilty vote; the Supreme Court overturned the state court's ruling and sent the case back.

Where it stands
Decided

Decided 5-3 · March 6, 2017 · Opinion by Justice Kennedy

What it’s about
After Peña-Rodriguez's conviction, two jurors reported another juror's racially biased statements during deliberations, but a rule barred juror testimony about deliberations.
Who it affects
The ruling requires a trial court to consider evidence when a juror clearly says racial stereotypes or hostility drove the guilty vote, despite a rule barring testimony about deliberations.

Summary: written with AI from the case record.

Illustration for Pena-Rodriguez v. Colorado
Conceptual illustration · AI-generated

What it's about

The Supreme Court overturned Colorado's ruling and sent the case back (reversed and remanded), holding that the rule must yield when a juror clearly says racial stereotypes or animus drove the guilty vote.

After his conviction, two jurors reported that another juror had made racially biased statements during deliberations.

Colorado's evidence rule generally kept jurors from describing deliberations as evidence to challenge a verdict.

Question presented

Whether a no-impeachment rule constitutionally may bar evidence of racial bias offered to prove a violation of the Sixth Amendment right to an impartial jury?

What the Court decided

Holding

Where a juror makes a clear statement indicating that he or she relied on racial stereotypes or animus to convict a criminal defend ant, the Sixth Amendment requires that the no-impeachment rule give way in order to permit the trial court to consider the evidence of the juror’s statement and any resulting denial of the jury trial guar antee. 350 P. 3d 287, reversed and remanded.

Result
Reversed

The Court's reasoning

The Court said the Sixth Amendment right to an impartial jury requires an exception to rules that bar juror testimony, so a trial court can consider a clear statement tying the guilty vote to racial stereotypes or hostility.

The vote

  • Joined the judgment
  • Dissented
  • Wrote an opinion
Majority · 5joined the Court's opinion
  1. Breyer
  2. Kagan
  3. Kennedy
  4. Ginsburg
  5. Sotomayor
Dissenting · 3disagreed with the result
  1. Thomaswrote a dissent
  2. Roberts
  3. Alitowrote a dissent
5 justices joined the judgment, 3 dissented.

From the opinions

“Even if a criminal defendant whose constitutional rights are at stake has a critical need to obtain and introduce evidence of such statements, long-established rules stand in the way.”

— Justice Samuel A. Alito, Jr.(dissent)

What's next

The case returns to Colorado for courts there to apply the rule to the juror statements. The Supreme Court did not itself order a new trial.

Documents

1

Docket activity

6
  • New analysis added

    Oct 19, 2026 · Court records

  • AI analysis generated: Case Briefing

    Oct 19, 2026 · Generated

  • AI analysis generated: Decision Record

    Oct 19, 2026 · Generated

  • Case data updated: summary, question_presented, generation_metadata

    Oct 19, 2026 · Court records

  • Case data updated: question_presented, extraction_metadata

    Oct 17, 2026 · Court records

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  • Brief added: Questions Presented

    Court records

More questions

1
Why did Justice Alito disagree?
He argued that long-standing rules can block important evidence to protect confidential discussions, and that jury deliberations deserved similar protection.

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 Oct 19, 2026Methodology

Court records and filings

Reporting and analysis