In disucssing the battle over whether or not to expand the conscience exemptions regarding the new mandated coverage by HHS, a very msart political scientist and I came to the conclusion that if we had non-partisan re-districting, we would not even be having this conversation.
Every ten years, after the census, state legislators re-draw the maps of congressional districts. Because computers give highly detailed information about voting behavior, those who are carving the districts draw the lines to create "safe" districts in which incumbents are unlikely to be challenged. One side of a street that votes Republican may find itself in a different district from their neighbors across the street who tend to vote for Democrats. Maybe, one day, they will divide individual homes, putting Dem grandma's bedroom in one district and her GOP-leaning son's bedroom in a different district.