Whether courts may consider changes in the law in assessing whether 'extraordinary and compelling reasons' warrant a sentence reduction under section 3582(c)(1)(A)

QUESTION PRESENTED 18 U.S.C. § 3582(c)(1)(A) provides a “safety valve” through which courts may reduce a defendant’s previously imposed sentence when “extraordinary and compelling reasons warrant such a reduction.” The question presented is: Whether courts may consider changes in the law in assessing whether “extraordinary and compelling reasons” warrant a sentence reduction under section 3582(c)(1)(A).