United States v. Joe Santillan, 944 F.3d 731

In 2017 a grand jury indicted Joe Ramon Santillan for, among other counts, conspiracy to distribute methamphetamine; the indictment included a 21 U.S.C. § 851 notice alleging a prior felony drug conviction.
The § 851 enhancement was premised on Santillan’s 2008 California conviction for possession of marijuana for sale (Cal. Health & Safety Code § 11359), which was a felony when he was convicted.
In 2016 California’s Proposition 64 reclassified possession of marijuana for sale as a misdemeanor; Santillan petitioned in November 2017 and the state court redesignated his 2008 conviction to a misdemeanor in December 2017.
Santillan moved to strike the § 851 notice, arguing the redesignation meant his prior conviction no longer qualified as a “felony drug offense” under 21 U.S.C. § 802(44)/§ 841(b)(1)(A).
The district court denied the motion; Santillan pleaded guilty to Counts 1 and 4 while preserving the right to appeal the denial, and was sentenced to 300 months’ imprisonment.

Issue	Plaintiff's Argument	Defendant's Argument	Held
Whether a state conviction that was a felony when entered but later redesignated as a misdemeanor still qualifies as a “felony drug offense” under § 841(b)(1)(A)	Santillan: redesignation under Prop 64 means the prior conviction is no longer a felony and cannot trigger the § 851 enhancement	Government: § 841 looks to the historical fact of the prior conviction and its punishment at the time it became final; later state relief does not erase that fact	The Eighth Circuit affirmed: a prior conviction counts if it was punishable as a felony when convicted (historical-fact approach)
Whether the 2016 reclassification meant Santillan lacked a “final” prior felony conviction at the time he committed the federal offense in 2017	Santillan: Prop 64 changed the legal status before his federal offense, so no final felony predicate existed	Government: finality is determined by the state conviction’s status when it became final (2008), unaffected by later state reclassification	Court held the conviction was final in 2008 and remained a qualifying predicate despite later redesignation

United States v. Diaz, 838 F.3d 968 (9th Cir. 2016) (Proposition-based reclassification does not erase the historical fact of a prior felony conviction for § 841)
United States v. Funchess, 422 F.3d 698 (8th Cir. 2005) (review of prior conviction enhancement is de novo)
United States v. Craddock, 593 F.3d 699 (8th Cir. 2010) (what counts as a prior conviction for § 841 is a federal question)
United States v. Williams, 616 F.3d 760 (8th Cir. 2010) (predicate offense evaluated by punishment at time of conviction)
Hirman v. United States, 613 F.3d 773 (8th Cir. 2010) (state reclassification does not negate predicate status for federal enhancement)
United States v. Dyke, 718 F.3d 1282 (10th Cir. 2013) (similar backward-looking approach to § 841 predicate analysis)
United States v. Sanders, 909 F.3d 895 (7th Cir. 2018) (agreeing that post-conviction state relief does not negate historical prior convictions for § 841)