From the introduction for the CRS Report An Introduction to Judicial Review of Federal Agency Action (R44699 Dec. 7, 2016): “The U.S. Constitution vests the judicial power in the Supreme Court and any inferior courts established by Congress, limiting the power of federal courts to the context of “cases” or “controversies.” Pursuant to constitutional and statutory requirements, courts may hear challenges to the actions of federal agencies in certain situations. This report offers a brief overview of important considerations when individuals bring a lawsuit in federal court to challenge agency actions, with a particular focus on the type of review authorized by the Administrative Procedure Act (APA), perhaps the most prominent modern vehicle for challenging the actions of a federal agency.” — Joe