Samuel Lee, federal prisoner #27842- *998 034, appeals the denial of his motion for inspection of the minutes of the grand jury proceedings in his criminal case. Lee was indicted by the grand jury for, and ultimately convicted of, extortion and conspiracy to commit extortion in violation of the Hobbs Act, 18 U.S.C. §§ 371, 1951(a). Lee contends that he needs access to the grand jury minutes to prove that witnesses who appeared before the grand jury perjured themselves.

However, Lee does not brief any argument challenging the district court’s basis for denying the motion — specifically, that the district court lacked jurisdiction to entertain the motion. Lee has thus abandoned any challenge to the district court’s denial of his motion, see Yohey v. Collins, 985 F.2d 222, 224-25 (5th Cir. 1993); Brinkmann v. Dallas County Deputy Sheriff Abner, 813 F.2d 744, 748 (5th Cir. 1987), and the judgment of the district court is AFFIRMED.