Reply #1: Well to be honest the bias is intentional and coincidental at the same time

[dmallind]

The intent was to balance power between urbanized populous states and rural low population states. We all know that of course

However the coincidence is that now at least the majority of low population density rural states are right wing oriented, quite probably because of a number of factors ranging from lack of cosmopolitan influences as well as reliance on agriculture and ranching etc. Why farmers and ranchers dislike the central government that bales them out so much I have no idea but they do.

I don't see a realistic way to address the latter without upending the former, short of equalizing state populations by changing boundaries - and how much likelihood is there of that?