Set the standard for what parties must establish in evidence to be granted summary judgement in federal civil cases and how courts should evaluate those motions. Since such motions are extremely common, Anderson has become the most-cited Supreme Court case. Decided June 25, 1986 (argued December 3, 1985). Opinion of the Court: Byron White → go there Dissenting: Brennan, Rehnquist. Topic: Other. Anderson v. Liberty Lobby, Inc., 477 U.S. 242 (1986), is a United States Supreme Court case articulating the standard for a trial court to grant summary judgment. Summary judgment will lie when, taking all factual inferences in the non-movant's favor, there exists no genuine issue as to a material fact and the movant deserves judgment as a matter of law. Because courts almost always cite Liberty Lobby in their opinions for the standard regarding motions for summary judgment, Liberty Lobby is the most cited Supreme Court case. Wiki link