Deep dive by Bob Barnes for WaPo:

Other changes attributable to Kennedy’s departure have drawn less attention. For years, Kennedy was alone among the conservative justices in believing extreme partisan gerrymandering —drawing legislative districts to favor the political party in power — might violatea voter’s constitutional rights and warrant the intervention of federal courts.

Less than a year after their former boss’s retirement, Gorsuch and Kavanaugh voted with the court’s other conservatives to say the Constitution doesn’t assign federal judges a role in making such determinations.