On November 30, some Ohio voting rights groups and voters filed a lawsuit in State Supreme Court to overturn the new U.S. House district boundaries. League of Women Voters v DeWine. Here is the Complaint.
In 2018 the voters of Ohio amended the state constitution to say the legislature “shall not pass a plan that unduly favors or disfavors a political party or its incumbents.” But the new districts make it likely that Republicans will win 3/4ths of the seats.