Republicans on Ohio’s political mapmaking panel voted Thursday to approve legislative maps they hope can pass constitutional muster, as they scramble to avoid a summons to appear before the Ohio Supreme Court under threat of contempt.

With pressure growing on multiple fronts, the Ohio Redistricting Commission’s GOP members released a new plan late Thursday that would create a 54-45 Republican majority in the Ohio House and an 18-15 Republican majority in Ohio Senate, by their calculations. Democrats disagreed with those calculations, opposing a plan they contended contained many districts too closely divided to be considered in their column.

If GOP assessments were accurate, it was the closest plan yet to match Ohio’s political breakdown, as required by the court. Justices invalidated two previous plans approved by the commission along party lines as gerrymandered to unduly favor one party.

Commissioners called before the high court earlier in the day include Republican Gov. Mike DeWine, whose son, Justice Pat DeWine, recused himself from the proceeding. The panel also includes Ohio’s secretary of state, auditor, House speaker and minority leader, Senate president and additional senator.

It wasn’t immediately known if the court would still summon the commissioners to the in-person hearing, currently set for Tuesday.

The faceoff would be the most dramatic turn to date between the stalemated Ohio Redistricting Commission and the divided court, which has repeatedly invalidated by 4-3 votes gerrymandered maps being sent to it from up the block at the Ohio Statehouse.

Conflict unfolding over the maps could affect the fate of Ohio’s May 3 primary. Both the secretary of state, who runs elections, and the state attorney general, who serves as the state’s lawyer, have urged a state Legislature controlled by fellow Republicans to move the primary date to avoid violations of state and federal law.