United States v. Ronald Jackson, 952 F.3d 492

Ronald S. Jackson was convicted in 2004 of conspiring to distribute 50+ grams of crack; sentenced to 240 months imprisonment and 10 years supervised release (enhanced by a prior conviction).
The Fair Sentencing Act (2010) raised crack quantity thresholds; the First Step Act §404 (2018) made those changes retroactive for eligible defendants.
Jackson, having served ~177 months, moved in 2019 for a First Step Act reduction to the new mandatory minimum of 120 months (which would have created ~57 months of "banked" time to offset future supervised-release revocations).
The Government supported immediate release but opposed any reduction below time served, arguing that banked time would undermine deterrence and supervision.
The district court reduced Jackson's sentence to time served and eight years supervised release, citing public-protection and deterrence concerns (and noting other courts had similarly reduced to time served); Jackson appealed.
The Fourth Circuit affirmed, holding the district court did not abuse its discretion in considering potential banked time and in declining to order a 120-month sentence.

Issue	Plaintiff's Argument	Defendant's Argument	Held
May a district court consider a defendant's ability to "bank" time toward future supervised-release revocations when deciding a First Step Act reduction?	Jackson: Court abused discretion; banked time is irrelevant/improper and cannot justify denying a lower reduced sentence.	Gov: Banked time is relevant to §3553(a) factors (public protection, deterrence); reduction below time served would create perverse incentives.	Yes. Court may consider banked time; doing so here was within discretion and not unreasonable.
Is Jackson entitled to a reduction to 120 months (the new mandatory minimum / his new Guidelines floor) because his original sentence reflected the then-mandatory minimum?	Jackson: He should get 120 months (proportionality to original within-Guidelines/mandatory sentence).	Gov/District Ct: First Step Act reductions are discretionary; no entitlement to a proportional or specific point in the new Guidelines range.	No. Court properly exercised discretion, considered §3553(a) factors, and reasonably declined to impose 120 months.

Miller v. Cox, 443 F.2d 1019 (4th Cir. 1971) (rejecting the idea that credits for time served create a "line of credit" for future crimes)
Johnson v. United States, 529 U.S. 53 (2000) (excess prison time does not shorten supervised-release term; supervision has distinct rehabilitative aims)
Wilson v. United States, 503 U.S. 329 (1992) (BOP computes pre-sentence credit; credit is for presentence restraints)
Reno v. Koray, 515 U.S. 50 (1995) (statutory credit awards only for presentence custody)
North Carolina v. Pearce, 395 U.S. 711 (1969) (crediting time served when convictions are vacated to avoid double punishment)
Chavez-Meza v. United States, 138 S. Ct. 1959 (2018) (district courts must adequately explain sentence-reduction decisions; no presumption of proportional reductions)
United States v. Gullett, 75 F.3d 941 (4th Cir. 1996) (courts may consider consequences of good-time and similar credits when crafting sentences)
United States v. Martin, 916 F.3d 389 (4th Cir. 2019) (discussion of standard of review for sentence-reduction decisions)