In Gore v. United States, the U.S. Supreme Court rules that it is constitutional for a defendant convicted of multiple crimes arising from a single act to be sentenced to serve multiple prison terms. In this case, the defendant was convicted of three different crimes arising out of drug sales made on two consecutive days. For the crimes committed on the first day, the defendant was given three sentences to be served consecutively. The three sentences for the same crimes committed on the second day would be considered to be served concurrently.