The purpose of the Stop Illegal Entry Act of 2025 is to strengthen penalties for individuals who enter or reenter the United States illegally, particularly after being removed from the country. The law aims to deter unlawful immigration by imposing harsher consequences for those who violate immigration laws. Key provisions of this law include significant increases in the penalties for illegal entry and reentry. For instance, the penalty for entering the U.S. unlawfully has been raised from a maximum of 2 years to 5 years in prison.