The most dramatic intervention was in 2018, when the justices ruled that the commonwealth’s congressional map was unconstitutionally gerrymandered to favor Republicans. The court ordered the legislature and governor to redraw it, and then commissioned a new map themselves when the two camps failed to reach an agreement. It dramatically changed Pennsylvania’s map, leading to a shift in representation in Washington D.C., going from a 13-5 Republican majority to an even split.
That decision gave lawmakers new guidelines for drawing maps. It noted that the criteria for creating districts previously included “the preservation of prior district lines, protection of incumbents, or the maintenance of the political balance.” The new decision said a map upholds the constitution’s requirement for “free and equal” elections when it prioritizes the creation of districts that are geographically compact and contiguous, has population amounts that are as equal as possible, and avoids dividing communities unless absolutely necessary.
Justice Debra McCloskey Todd, the Democrat who wrote the majority opinion in the case, said any map marked by significant partisan gerrymandering to dilute specific votes cannot be called “free and equal.”
She singled out the old 2011 map’s GOP-controlled 7th congressional district, which had covered a convoluted amalgam of communities in Delaware, Chester, Montgomery, Berks and Lancaster Counties, and had been held up for years as one of the worst examples of gerrymandering in the country.
These new criteria, she said, were designed to “provide a ‘floor’ of protection for an individual against the dilution of his or her vote in the creation of such districts.”
Costa, for his part, says he thinks it’s possible the court won’t get involved this year. A lot of attention has been paid to redistricting over the last decade, he noted, and he believes both parties could be more eager to make concessions this time around.
Plus, in 2011 all three branches of government were controlled by Republicans. This time around, Democrats hold two.
“I think there’s a strong incentive to compromise,” Costa said. “We don’t want chaos in 2022.”