The US Supreme Court declined to take up a challenge to Ohio’s electoral map on Monday, following their June decision that it is improper for courts to rule on political redistricting challenges.

In an unsigned order, the Supreme Court remanded the case challenging Ohio’s electoral map back to the federal district court with instructions to dismiss the case consistent with the Supreme Court’s decision in Rucho v. Common Cause.

The appellants alleged that Ohio’s congressional districts were drawn by Republicans to limit the number of competitive districts and disadvantage non-republican candidates. According to data compiled by the non-profit Ohio Voter Project, as of May 2018 there are roughly 1.93 million registered Republican voters in Ohio and 1.35 million registered Democrats. However, because of the electoral map adopted by the Republican-dominated state congress in 2012, only four of the state’s 16 congressional representatives are members of the Democratic party. The appellants argued that this heavily partisan redistricting violated various sections of the US Constitution, including Article I and the Fourteenth Amendment.

Although the challenge was initially successful, the Supreme Court’s remand likely reverses the earlier ruling. Under the Supreme Court’s decision in Rucho, courts cannot rule on the merits of the redistricting of a state electoral map unless it is overtly racially motivated or the state law prohibits gerrymandering, neither of which was at issue with Ohio’s map.