Ohio Democrats are asking the U.S. Supreme Court to delay a reduction in early voting in the presidential swing state while they appeal the issue.
The state's Democratic Party asked the court Thursday to suspend a ruling that would trim early voting opportunities.
That lower court decision from last month upheld a law eliminating days in which people could register and vote at the same time, a period known as "golden week."
Democrats want the days reinstated, though they face long odds.
The Supreme Court justices divided 4-4 in a move to reinstate North Carolina's voter identification requirement.
The split illustrated how closely divided the court is on voting rights.
A 4-4 split in this case would be a loss for the Ohio Democrats.