Complex sentence: Sutherland wrote a decision affirming a zoning ordinance in "Village of Euclid, Ohio v. Ambler Realty Co.", which was widely interpreted to be a general endorsement of the constitutionality of zoning laws.
Split into simpler sentences: Sutherland wrote a decision refusing to declare unconstitutional a local zoning ordinance, in "Village of Euclid, Ohio v. Ambler Realty Co.". The decision was widely interpreted as a general endorsement of the constitutionality of zoning laws.