The main purpose of this legislation is to change the process for appealing nationwide injunctions issued by federal district courts. Specifically, it aims to ensure that any appeal of such an injunction goes directly to the Supreme Court of the United States. This is intended to streamline the legal process and reduce the potential for "court shopping," where parties seek out favorable jurisdictions for their cases. Key provisions of this legislation include the establishment of a new section in the U.S. Code that defines a nationwide injunction.