The Supreme Court, in a fractured opinion governed by Justice Sotomayor's narrow concurrence, ruled that in certain limited circumstances, and depending on the language in the agreement, a defendant who pleaded guilty pursuant to a Rule 11(c)(1)(C) plea agreement (which allows the parties to agree to a specific sentence or sentencing range and binds the district court to impose that sentence once it accepts the plea agreement) may seek a lower sentence if the Sentencing Commission subsequently amends the Guidelines.