How about a data driven platform determined solely by what gets at least 65% majority support in two or more national polls?

Given political preferences tend to fall along a normal distribution curve, rather than drawing a line in the middle and catering to two parties necessarily based by the split toward less popular ends, it would make more sense to focus on two std deviations from the norm and ignore the extremes of each side, leaving it up to national discourse to move the median in one direction or the other and have representatives literally just represent whatever the majority holds.