In 2011, Republicans redrew the state’s district maps, using Superior Avenue to cleave the Twenty-sixth Assembly District, which for decades had encompassed the entire city—and had been reliably Democratic.

Source: https://www.newyorker.com/news/the-political-scene/a-high-stakes-election-in-the-midwests-democracy-desert

Their “hard” Brexit redrew the jagged dividing lines in Northern Ireland that had been so elegantly smoothed by the Good Friday agreement and its successors.

Source: https://www.theguardian.com/commentisfree/2023/apr/09/brexit-25-years-good-friday-agreement-challenges