When the district court fails to calculate the guideline range at sentencing, whether the defendant may rely on the district court's error alone to show prejudice under plain error review when the "record is silent as to what the district court might have done had it considered the correct Guidelines range," Molina-Martinez v. United States, 136 S. Ct. 1338, 1347 (2016).

Whether the defendant may rely on the district court's error alone to show prejudice under plain error review when the record is silent as to what the district court might have done had it considered the correct Guidelines range