sentence from a range based on the quantity of cocaine base. Contrary to Robinson’s assertions, the district court did not specifically find that his criminal history was overrepresented or depart downward pursuant to the Guidelines. Instead, the district court’s Statement of Reasons indicates that it varied downward in light of the sentencing factors of 18 U.S.C. § 3553(a) and its conclusion that the sentencing range calculated using the career offender guideline would result in a punishment greater than necessary to satisfy the sentencing goals of § 3553(a). However, even though the district court varied downward from the calculated guidelines range, Robinson’s sentence remained based on the career offender guideline. Cf. United States v. Carter, 595 F.3d 575, 577-78 (5th Cir.2010) (<HOLDING>), cited in United States v. Mitchell, 423
holding where the statutory minimum sentence exceeds the guidelines sentence a substantialassistance downward departure begins at the mandatory minimum sentence holding that a sentence was based on a mandatory statutory minimum sentence even though it was lowered under another statute holding that a sentence based on a mandatory minimum was unaffected by amendment 706 to the sentencing guidelines holding that a sentence below a statutory minimum based on the filing of a substantial assistance motion did not eliminate the otherwise applicable mandatory minimum for purposes of sentence modification under  3582c2 holding that even if the minimum mandatory exceeds the statutory maximum the court must impose the minimum mandatory