Miguel Angel Peña-Rodriguez, Petitioner v. Colorado.

Summary

The Court held that the Sixth Amendment requires an exception to the no-impeachment rule when a juror makes clear statements indicating racial animus was a significant motivating factor in the verdict. The Court reasoned that racial bias poses unique systemic harms and existing safeguards like voir dire may be insufficient to detect it. Justice Thomas and Justice Alito dissented, arguing the decision conflicts with common law history and undermines jury deliberation confidentiality.