Final answer:
The Supreme Court's decision in the 1954 case Brown v. Board of Education ruled state laws couldn't uphold segregation in public education.
Step-by-step explanation:
The court ruled that state laws could not set aside the court's decision to end segregation of public education in 1954. This ruling was handed down by the United States Supreme Court in the landmark case Brown v. Board of Education. The Supreme Court held that racial segregation in public education was a violation of the Equal Protection Clause of the Fourteenth Amendment, thereby overruling any contrary state laws.
Learn more about Brown v. Board of Education