Brown v. Buhman

(1) Whether the government can seek to moot a lawsuit challenging the constitutionality of a statute by adopting a new non-enforcement policy during the pendency of litigation; (2) whether the government can later moot by voluntary cessation a subsequently filed lawsuit challenging the constitutionality of a statute under which the government publicly threatened a party with prosecution; and (3) when a district court makes underlying findings of fact in the course of adjudicating a claim under the voluntary cessation doctrine, under what standard of review those findings should be examined on appeal.