A bipartisan majority on the Ohio Supreme Court has rejected Republican-drawn maps for U.S. congressional districts and state legislative districts a combined four times this year, handing Republicans rejection after rejection on the grounds that their proposed maps are illegally slanted in their own favor. And yet, Republicans may end up on top anyway, thanks to a combination of stalling tactics and tricky legal maneuvers. Early voting in the state’s primaries begins April 5. And amid ongoing legal uncertainty over the maps, Republican legislative leaders in the state, who are also key members of the state’s GOP-dominated redistricting commission, have...