High Quality Content by WIKIPEDIA articles! James v. United States, 550 U.S. 192 (2007), is a decision by the Supreme Court of the United States that held that attempted burglary could serve as a predicate felony under the federal Armed Career Criminal Act (ACCA), which provided that a person convicted of being a felon in possession of a firearm with three prior convictions for either serious drug offenses or violent felonies must be sentenced to a mandatory minimum 15-year prison term.