"There are two conceivable bases for concluding that McCorvey does not present a live case or controversy — lack of standing and mootness. As the Supreme Court explained in Friends of the Earth, Inc. v. Laidlaw Environmental Services (TOC), Inc., 528 U.S. 167, 180, 120 S. Ct. 693, 704, 145 L. Ed. 2d 610 (2000), standing and mootness are related, but distinct, concepts. We may pretermit the question of standing if we find a case clearly moot. See, e.g., Nomi v. Regents of Univ. of Minn., 5 F.3d 332, 334 (8th Cir. 1993). The mootness doctrine "ensures that the litigant's interest in the outcome continues to exist throughout the life of the lawsuit ... including the pendency of the appeal." Cook v. Colgate, 992 F.2d 17, 19 (2d Cir. 1993) (citing United States Parole Comm'n v. Geraghty, 445 U.S. 388, 395, 100 S. Ct. 1202, 1209, 63 L. Ed. 2d 479 (1980)) (other citations omitted); see also Rocky v. King, 900 F.2d 864, 866 (5th Cir. 1990) (controversy must remain "live" throughout the litigation process). Mootness is the fatal issue for McCorvey. "In general, a matter is moot for Article III purposes if the issues presented are no longer live or the parties lack a legally cognizable interest in the outcome." Sierra Club v. Glickman, 156 F.3d 606, 619 (5th Cir. 1998). Suits regarding the constitutionality of statutes become moot once the statute is repealed. See Diffenderfer v. Cent. Baptist Church, 404 U.S. 412, 414-15, 92 S. Ct. 574, 575-76, 30 L. Ed. 2d 567 (1972); see also Fed'n of Adver. Indus. Executives, Inc. v. City of Chicago, 326 F.3d 924, 930 (7th Cir. 2003) (" [W]e, along with all the circuits to address the issue, have interpreted Supreme Court precedent to support the rule that repeal of a contested ordinance moots a plaintiff's injunction request, absent evidence that the City plans to or already has reenacted the challenged law or one substantially similar."); Weeks v. Connick, 733 F. Supp. 1036, 1037 (E.D. La. 1990)."