Brown v. Board of Education was an unjustified grab for political power by the U.S. Supreme Court. The decision violated classically republican norms by dictating policy to democratically elected state legislatures. It violated classically liberal norms by replacing one form of required social ordering - segregation - with another required form - integration- instead of leaving citizens free to choose. It violated common law norms by overturning a long-standing precedent without finding that Plessy's reasoning was defective. The only justification for the decision was a weak appeal to social science. In Brown, the Court violated the constitution's limits on U.S. Supreme Court authority