successive application. See 28 U.S.C. § 2244(b)(3)(A) (“Before a second or successive application permitted by this section is filed in the district court, the applicant shall move in the appropriate court of appeals for an order authorizing the district court to consider the application.”). To the extent the petition raised claims concerning the execution of Mr. Sherratt’s sentence under 28 U.S.C. § 2241, the district court dismissed them as well, reasoning they also were second or successive and, alternatively, that he had not shown a federal constitutional violation. Mr. Sherratt has appealed. He seeks a certificate of appealability (COA). See 28 U.S.C. § 2253(c) (requiring a COA to appeal the dismissal of a claim under § 2254); Montez v. McKinna, 208 F.3d 862, 869 (10th Cir.2000) (<HOLDING>). To obtain a COA, he must show both “that
holding only claims properly presented to the bia and considered on their merits can be reviewed by this court in an immigration appeal holding  2253clas coa requirement applies to state prisoners proceeding under  2241 when the petition relates to any of the incidents and circumstances of any detention pursuant to state court process holding that state prisoners must obtain a coa to appeal denials of 28 usc  2241 petitions holding state prisoners proceeding under  2241 must be granted a coa before their claims can be considered on the merits holding that only claims properly presented to the bia and considered on their merits can be reviewed by this court