A day after upholding the use of independent commissions to draw political boundaries, which have a goal of getting away from partisan gerrymandering, the US Supreme Court today agreed to hear a claim that a commission's work was too partisan.
The case comes from Arizona, the same state at the heart of Monday's decision about the constitutionality of setting up independent commissions. This new case isn't about the Arizona commission's legitimacy, it's about the boundaries themselves.
The court agreed to hear a lawsuit brought by Arizona voters who challenged the map drawn for state legislative districts in 2012 based on the 2010 census. They claim that the new map underpopulated Democratic-leaning districts and overpopulated Republican-leaning districts for partisan reasons, violating the one-person, one-vote requirement of the Constitution.