"When the overall Republican vote share in the state is 50 percent or more, the authors of the paper show, the map behaves much like an unbiased one. But when the map is tested by an electorate that leans Democratic, its special features kick in, maintaining a healthy Republican majority against the popular headwind."
Interesting piece on gerrymandering. Doubtless Drumpf will be continually stepping up efforts in this area to seek to ensure his second term.
https://www.nytimes.com/2017/10/06/opinion/sunday/computers-gerrymandering-wisconsin.html
"When the overall Republican vote share in the state is 50 percent or more, the authors of the paper show, the map behaves much like an unbiased one. But when the map is tested by an electorate that leans Democratic, its special features kick in, maintaining a healthy Republican majority against the popular headwind."