v. Haines, 803 F.3d 713, 744 (5th Cir. 2015) (citing United States v. Barragan-Malfabon, 537 Fed.Appx. 483, 484-85 (5th Cir. 2013) (per curiam); United States v. Chagoya, 510 Fed.Appx. 327, 328 (5th Cir. 2013) (per curiam)); see also United States v. Guzman-Reyes, 853 F.3d 260, 263 (5th Cir. 2017), 2 . United States v. Cisneros-Gutierrez, 517 F.3d 751, 764 (5th Cir. 2008) (quoting United States v. Juarez-Duarte, 513 F.3d 204, 208 (5th Cir. 2008) (per curiam)). 3 . United States v. Richardson, 676 F.3d 491, 511 (5th Cir. 2012) (citations omitted), 4 . USSG § 2D1.1(b)(12) (2015). 5 . USSG § 2D1.1(b)(12), comment 17. 6 . Guzman-Reyes, 853 F.3d at 264; see also United States v. Miller, 698 F.3d 699, 705 (8th Cir. 2012). 7 .See United States v. Roberts, 913 F.2d 211, 219-20 (5th Cir. 1990) (<HOLDING>). 8 . United States v. Benitez, 809 F.3d 243,
holding that a federal agents expert testimony regarding the characteristics of crack cocaine and the methods of its distribution was admissible and highly relevant in helping the jury resolve the central issue of whether the defendant possessed crack cocaine with intent to distribute holding that the term cocaine base in 21 usc  841b1 refers to cocaine in its chemically basic form which includes but is not limited to crack cocaine holding that district court did not err in determining that cocaine base was crack cocaine based on chemical analysis identifying cocaine base together with competent lay testimony bridging the evidentiary gap between cocaine base and crack cocaine and refusing to require showing of smokeability ie water solubility or melting point for purposes of establishing crack cocaine under the guidelines since smokeability distinguishes cocaine base from powder cocaine not from crack holding that sentencing disparity between crack and powder cocaine is constitutional holding that the evidence was sufficient to support a conviction under  856 where premises contained two white envelopes containing thirtytwo packs of crack cocaine equipment required for the manufacture and packaging of crack cocaine fortyone white envelopes containing particles of crack cocaine and crack cocaine stored in a laundry bag in the bathroom