[1] The plaintiff, Clifton Terelle McNeil, was sentenced to 300 months in jail after being convicted of unlawful possession of a firearm.

He was also sentenced to an additional 240 months in prison for unlawful possession with intent to distribute crack cocaine.

A US District court determined McNeil was an "armed career criminal" and therefore sought the highest sentence possible for his crimes.

"[2] Can the federal Armed Career Criminal Act be used in conduction with a state law for the purposes of a longer sentence?

[2] In a unanimous decision in favor of the United States, Justice Thomas wrote the opinion for the Court.