Should the petitioner's novel claim that his confession was fabricated be encouraged to proceed further, necessitating a Certificate of Appealability?

QUESTION(S) PRESENTED I. Under Miller-El v. Cockrell 537 U.S. 322 (2003), should the Petitioner’s novel claim that his confession was fabricated be encouraged to proceed further, thus necessitating a Certificate of Appealability under 28 U.S.C. § 2253? Il. Under Miller-El v. Cockrell 537 U.S. 322 (2003), should the Petitioner’s claim that the State withheld Brady v. Maryland 373 U.S. 83 (1963) material be encouraged to proceed further, thus necessitating a Certificate of Appealability under 28 U.S.C. § 2253?