Without gerrymandering, districts would have a normal distribution from 60-40 to 40-60.
https://www.nytimes.com/interactive/2015/12/24/upshot/24up-f...
And even when choosing, they do it for job, etc reasons, not necessarily or primarily with political criteria.
Without gerrymandering, districts would have a normal distribution from 60-40 to 40-60.