Joseph Crosby, Jr., federal prisoner # 36119-180, pleaded guilty of possession with intent to distribute more than 50 grams of crack cocaine within 1,000 feet of a school, in violation of 21 U.S.C. §§ 841 and 860. He moves for leave to proceed in forma pauperis (“IFP”) in this appeal from an order granting his pro se 18 U.S.C. § 3582(c)(2) motion for sentence reduction based on the retroactive amendment to the crack cocaine guideline.

By moving for IFP, Crosby is challenging the district court’s certification that his appeal is not taken in good faith. See Baugh v. Taylor, 117 F.3d 197, 202 (5th Cir. 1997). Crosby, however, asserts only that he is entitled to proceed IFP on appeal because he is a pauper; he makes no argument that his appeal involves any non-frivolous issue. Because of his failure to brief them, he has abandoned his district-court claims and any challenge to the district court’s certification. See Yohey v. Collins, 985 F.2d 222, 224-25 (5th Cir. 1993); Brinkmann v. Dallas Cnty. Sheriff Abner, 813 F.2d 744, 748 (5th Cir. 1987).

The appeal lacks any issue of arguable merit. See Howard v. King, 707 F.2d 215, 220 (5th Cir. 1983); Baugh, 117 F.3d at 202. It is therefore DISMISSED as frivolous. Baugh, 117 F.3d at 202 n. 24; 5th Cir. R. 42.2. The motion to proceed IFP is DENIED. See Baugh, 117 F.3d at 202 n. 24. Crosby’s motion for appointment of counsel is likewise DENIED.