The term "immigration overhaul" refers to making significant changes and improvements to the existing immigration system of a country. It involves updating and modifying laws, policies, and regulations related to who can enter, live, and work in the country. This is done to address issues or challenges, such as outdated rules, large backlogs, illegal immigration, or to ensure a fair and efficient process for immigrants. It aims to create a more organized and updated system that aligns with the country's current needs and priorities.