The U.S. Supreme Court agreed to prolong a temporary freeze on North Dakota’s legislative district map — hinting that the justices may be interested in hearing a tribal voting rights case against the state.

The Supreme Court blocked an appeals court ruling that would gut a key provision of the Voting Rights Act in a case brought by Native American tribes challenging a North Dakota legislative map.

The Supreme Court on Thursday paused a lower court ruling limiting the ability of private individuals to bring lawsuits over potential violations of the Voting Rights Act. The case could be heard by the justices on the merits in the coming term.