Immigration · Primary-source case analysis

Garland v. Ming Dai: No Federal-Court Presumption That Immigration Testimony Is True

By Aneeta Mishra and Timothy Chan

Published April 15, 2026 · Updated October 18, 2026

Decision: Garland v. Ming Dai, 593 U.S. 357 (2021).

Ming Dai explains the different roles of the immigration judge, the Board of Immigration Appeals, and a federal reviewing court when the record contains testimony the agency did not expressly label incredible.

Two petitions and one Ninth Circuit rule

The consolidated cases involved Ming Dai’s asylum-related claims and Cesar Alcaraz-Enriquez’s request for withholding of removal. The Ninth Circuit treated the testimony as credible and true because it found no explicit adverse-credibility determination. The Supreme Court assumed the absence of such a determination for its alternative analysis, but expressly left for another day what an agency must say or do to make one explicit. Ming Dai, slip op. at 4–6, 10–11.

The INA’s limited credibility presumption

The statute creates a rebuttable presumption of credibility on appeal to the Board when the immigration judge made no explicit adverse-credibility determination. It does not create the same presumption in federal court, and it does not require a reviewing court to treat every statement as true or persuasive. Even before the Board, the presumption is rebuttable. The Court explained that the agency need not use special words to rebut it if its actual reasoning can reasonably be understood; a reviewing court still cannot invent a new explanation the agency never gave. Ming Dai, slip op. at 8–13.

Substantial-evidence review governs

A court of appeals must accept the agency’s factual findings unless any reasonable adjudicator would be compelled to reach the opposite conclusion. The reviewing court cannot replace that standard with its own rule deeming testimony true, and it must consider the agency’s stated reasons and the record as a whole.

Disposition

The Supreme Court vacated the Ninth Circuit judgments and remanded both cases. It did not make new credibility findings; it required the lower court to conduct the review Congress prescribed.

Key takeaways

• The statutory credibility presumption applies in a specific appeal to the BIA, not generally in federal court.
• Credible testimony is not automatically accurate, persuasive or sufficient; compare it with the other evidence the agency actually weighed.
• Federal review uses the substantial-evidence standard.
• The agency’s actual reasoning and full administrative record control the review.