Do district courts have authority to grant compassionate release under 18 U.S.C. 3582(c)(1)(A), as amended by the First Step Act of 2018, based on a compelling showing by the defendant that the sentence originally imposed is excessive under current law or instead must district courts await specific approval from the Sentencing Commission to exercise such jurisdiction?

Do district courts have authority to grant compassionate release under 18 U.S.C. 3582(c)(1)(A)