Morris v. United States

Issue: Whether the First Circuit erroneously held – in conflict with the Fourth, Sixth, Eighth, and Ninth Circuits, but consistent with the Seventh and Eleventh Circuits – that a mandatory minimum sentence imposed in violation of Alleyne, based on a fact found by a judge by a preponderance of the evidence at sentencing, can be deemed not to have affected the defendant's substantial rights, if an appellate court concludes that the fact was supported by “overwhelming evidence” offered only at sentencing, but never presented to a jury or admitted by the defendant in connection with a guilty plea.