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Witness bias at trial

Pineda-Caceres v. United States

Updated Nov 12, 2026

In brief

Where it stands
Dismissed

Petition denied.

What it’s about
Jose Pineda-Caceres argued that the trial court violated his right to challenge a witness by excluding evidence intended to show that a key government witness was biased, had reason to lie, and remained loyal to MS-13.
Who it affects
Pineda-Caceres did not get Supreme Court review of his challenge to the excluded evidence.

Summary: written with AI from the case record.

Illustration for Jose Pineda-Caceres, Petitioner v. United States
Conceptual illustration · AI-generated

What it's about

The Supreme Court refused to hear his case, so it did not decide that claim.

Pineda-Caceres argued the evidence would show that the government's cooperating witness was biased, had reason to lie, and remained loyal to MS-13.

Question presented

Whether the Petitioner’s rights under the Confrontation Clause were violated when the trial court excluded evidence offered to show that the government’s key cooperating witness was biased, had motive to testify falsely, and remained loyal to a criminal organization, the MS-13 Gang?

Documents

1

Docket activity

6
  • New analysis added

    Nov 12, 2026 · Court records

  • AI analysis generated: Case Briefing

    Nov 12, 2026 · Generated

  • AI analysis generated: Decision Record

    Nov 12, 2026 · Generated

  • Case data updated: summary, question_presented, generation_metadata

    Nov 12, 2026 · Court records

  • Case data updated: question_presented, extraction_metadata

    Nov 12, 2026 · Court records

Show 1 more
  • Brief added: Petition

    Jul 14, 2026 · 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 12, 2026Methodology

Court records and filings

Reporting and analysis