The purpose of this legislation, known as the "End Sanctuary Cities Act of 2026," is to prevent state and local government officials from obstructing immigration laws. It aims to ensure that law enforcement agencies cooperate with federal immigration authorities, particularly regarding the release of individuals who are in the country illegally and have been charged with or convicted of crimes. Key provisions of the law include a clear definition of terms such as "criminal alien," which refers to individuals who have been charged with or convicted of a crime.