Maryland actually has a right-leaning Supreme Court, thanks to Hogan's influence, he actually appointed 6/7 of the justices on it. Considering how much Republicans whine about the Maryland map this makes me wonder why they don't just challenge it outright because they'd actually have a great chance of getting it struck down unless we believe that Maryland Republicans actually have a belief in the ISL and refuse to take action on principal, which is just lol. Seems like an obvious course of action to take.
(unless it was and I just missed it.)
They threatened to and then brokered a compromise map iirc, which is why the current map is pretty clean compared to last cycle.
Also, keep in mind those Hogan judges were all confirmed by a supermajority Dem state senate, so they likely aren't exactly Alitos.