The U.S. Supreme Court on Monday rejected a lawsuit by Utah that argued the federal government was unconstitutionally holding onto vast, unreserved swathes of the Republican-led state's territory comprising more than a third of the land within its borders.

The Supreme Court is turning back a push by the state of Utah to wrest control of vast areas of public land from the federal government.

The U.S. Supreme Court has rejected Utah's lawsuit seeking control of 18.5 million acres of federal land. Why it matters: State officials put on a costly campaign of TV ads and other marketing, to encourage SCOTUS to take up the case.