WASHINGTON — The Supreme Court on Monday blocked an appeals court ruling that would have restored seven days of early voting in Ohio.

The Supreme Court’s order was three sentences long and contained no reasoning. But it disclosed an ideological split, with the court’s four more liberal members noting that they would have denied the request for a stay of the lower court’s order extending early voting. Dale Ho, a lawyer with the American Civil Liberties Union, said the court’s action “will deprive many Ohioans of the opportunity to vote in the upcoming election as this case continues to make its way through the courts.”

The ruling, which reflected a partisan breakdown in many court decisions nationwide on voting issues, saw the five Republican-appointed justices uphold the voting restrictions enacted by the state’s Republican-controlled Legislature in February. The new limits removed the first week of Ohio’s 35-day early voting period, in the process eliminating the only week that permitted same-day registration, a feature most often used by minorities.

Last Wednesday, a three-judge panel of the United States Court of Appeals for the Sixth Circuit, in Cincinnati, ordered officials in Ohio to let voters start casting ballots on Tuesday. The panel reasoned that cutting back on early voting at polling places placed a disproportionate burden on poor and black voters.