or unwilling to return to his country of origin “because of [past] persecution or a well-founded fear of persecution on account of race, ... membership in a particular social group, or political opinion.” 8 U.S.C. § 1101(a)(42); see also Sako, 434 F.3d at 862. Mbaye fails to demonstrate either past persecution or a well-founded fear of future persecution and, therefore, her motion to reopen must fail. See Zhang, 543 F.3d at 854 (“When a necessary element of her claim — whether she faced a risk of individual persecution — failed, so did her entire motion.”). “To the extent [that Mbaye’s] underlying asylum claim is based on past persecution, her claim is precluded by the IJ’s previous adverse credibility determination.” Vakeesan, 343 Fed.Appx. at 124; see also Zhang, 543 F.3d at 855 (<HOLDING>); Abeshi, 259 Fed.Appx. at 778 (holding that
holding that the bia did not abuse is discretion in declining to credit unauthenticated documents submitted with a motion to reopen where alien had been found not credible in the underlying proceedings holding that the bia did not abuse its discretion in taking into account the ijs and bias prior unrebutted adverse credibility determination in reviewing documentation submitted with a motion to reopen holding that bia abused its discretion in denying motion to reopen holding that the bia did not abuse its discretion in denying a motion to reopen supported by allegedly unavailable evidence regarding changed country conditions where there had been a previous adverse credibility finding in the underlying asylum hearing holding that bia did not abuse its discretion by declining to consider an unauthenticated document submitted with a motion to reopen to show changed country conditions