19-8709 Greer v. United States (2021-April-20)
b'QUESTION PRESENTED:\\n\\nWhether, when applying plain-error review based on an intervening United States Supreme Court decision, Rehaif v. United States, a circuit court of appeals may review matters outside the trial record to determine whether the error affected a defendant\\u2019s substantial rights or impacted the fairness, integrity or public reputation of the trial.'