Miguel Ruiz, Jr., federal prisoner # 57857-179, appeals the denial of his post judgment motion to amend the judgment denying his 28 U.S.C. § 2255 motion and the denial of his amended § 2255 motion, wherein he sought to challenge his conviction of possession with intent to distribute 4.83 kilograms of cocaine. This court granted Ruiz a certifícate of appealability on the following issues: (1) whether the district court erred by denying his motion under Federal Rule of Civil Procedure 59(e) and (2) whether the district court erred by denying Ruiz’s motion to amend his § 2255 motion.

Ruiz argues that the district court abused its discretion by denying his Rule 59(e) motion because the motion was timely. He also argues that his motion should have been granted because the district court did not understand his § 2255 filings due to his mental deficiency and that his mental deficiency prevented him from understanding and complying -with the § 2255 procedures. Ruiz has not demonstrated that the district court’s denial of his Rule 59(e) motion was based upon manifest errors of law or fact or presented newly discovered evidence. Templet v. HydroChem, Inc., 367 F.3d 473, 478 (5th Cir. 2004). Accordingly, he has not demonstrated that the district court abused its discretion by denying his motion to alter or amend the judgment. See Midland West Corp. v. Fed. Deposit Ins. Corp., 911 F.2d 1141, 1145 (5th Cir. 1990).

Ruiz also argues that the district court erred by denying his post judgment motion to amend his § 2255 motion. He argues that his motion should have been granted, pursuant to Federal Rule of Civil Procedure 15, in the interests of justice *82 because Ms prior pleadings reflect that he was unable to understand the proceedings without assistance and that the argument he raised in his motion to amend, that counsel was ineffective for failing to ensure his mental competence prior to his conviction and sentencing, related back to his original § 2255 filings. Ruiz is not entitled to relief under Rule 15. See Rosenzweig v. Azurix Corp., 332 F.3d 854, 864 (5th Cir. 2003).

Ruiz’s post judgment motion to amend his § 2255 motion constituted an unauthorized successive § 2255 motion. See United States v. Orozco-Ramirez, 211 F.3d 862, 867 (5th Cir. 2000) (quoting In re Cain, 137 F.3d 234, 235 (5th Cir. 1998)); cf. Gonzalez v. Crosby, 545 U.S. 524, 530-32, 125 S.Ct. 2641, 162 L.Ed.2d 480 (2005). Accordingly, Ruiz has not demonstrated that the district court erred by denying his motion.

The judgment is AFFIRMED.