McNeese v. Board of Education for Community Unit School District 187 Cahokia

In Burford v. Sun Oil Co., 319 U. S. 315, 317-318, this Court said:

“Although a federal equity court does have jurisdiction of a particular proceeding, it may, in its sound discretion, whether its jurisdiction is invoked on the ground of diversity of citizenship or otherwise, ‘refuse to enforce or protect legal rights, the exercise of which may be prejudicial to the public interest’; [citing United States v. Dern, 289 U. S. 352, 360] for it ‘is in the public interest that federal courts of equity should exercise their discretionary power with proper regard for the rightful independence of…