The Supreme Court heard arguments on Monday in a pair of cases that could determine whether local governments can take measures to promote racially desegregated schools. Parents of white students in Seattle and Louisville sued their local school districts to challenge policies that considered race as a factor in determining what schools students attend. The New York Times reports that after Monday’s oral arguments, it appears the court will rule on the side of the white parents. Civil rights groups have said such a ruling would undermine the promise of Brown v. Board of Education, the landmark 1954 decision that outlawed separate systems of education for black and white schoolchildren.