How did the fourteenth amendment to the constitution allow the supreme court to interpret civil rights law differently?

Passed by Congress June 13, 1866, and ratified July 9, 1868, the 14th amendment extended liberties and rights granted by the Bill of Rights to former slaves. ... The right to due process of law and equal protection of the law now applied to both the Federal and state governments.

Explanation:

The Supreme Court ruled that the 14th Amendment protects public school students from state-sanctioned segregation. Chief Justice Earl Warren, writing for a unanimous court, declared, "In the field of public education, the doctrine of 'separate but equal' has no place.

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