United States v. Sun-Diamond Growers is a pivotal Supreme Court case from 2000 that clarified the definition of bribery under federal law, specifically in relation to the honest services fraud statute. The case revolved around allegations that the company had provided gifts to a government official in exchange for favorable decisions regarding regulations affecting their business. This case is significant because it illustrates the legal boundaries of what constitutes bribery and the standards of proof required in such cases.