Okay, first of all proof doesn't exist. Only in math. And even then it only exists in the sense that you either find it convincing or not. 
Beyond that, what I've seen of Dems vs Repubs there's a pretty clear trend. That's an opinion. No I will not provide data.
Beyond that, what I've seen of Dems vs Repubs there's a pretty clear trend. That's an opinion. No I will not provide data.
http://spq.sagepub.com/content/73/1/33.full
