Answer:
So here is what I think it is.
Explanation:
The Equal Protection Clause is the first section of the 14th Amendment, which states "...nor shall any State ... deny to any person within its jurisdiction the equal protection of the laws..." Which essentially means that you cannot deny a person equal protection under the law. So the justification is that it is part of an amendment and therefore Congress has the right to pass said law if it follows the Constitution.
