AJ, I don't dispute that the GOP drew favorable district lines. I am disputing if there is an easy non-political solution to this long tradition in American politics. Consider this:

(1) The science / statistical model argument. Will this not simply lead to partisan groups of scientific and statistical models being pitted against one another? We are talking about trying to predict the social word and human behavior - not atoms and physical science. These models all have considerable false positives that will be used to dispute them.

(2) If SCOTUS agree to a specific model or even adjudicating this case...what prevents every other election being challenged in court? 

(3) Related to (1) what is a reasonable threshold? What projected seat outcome would be reasonable? Would Ds agree to the same in district that for instance cluster minority votes because the GOP feels it is an unfair advantage...Our that delude urban vs rural differences?