Equal protection of the law ensures all citizens before the courts receive due process of the law irrespective of their status or circumstance
Equal Protection of the law applies to the states through the 14th Amendment incorporation clause that protects all US citizens. The 14th Amendment is commonly used to protect those who face unfair and discriminatory practices between different states.
This Equal Protection Law has often been challenged under the pretense of Congress claiming the need to regulate interstate commerce in order to make an issue a national priority. This approach in earlier times has had some success.
The goal of the Equal Protection Clause is to grant equal justice to all citizens – notwithstanding the state they are from or the person’s race, conditions, or circumstances.