http://www.motherjones.com/politics/2014/07/biology-ideology-john-hibbing-negativity-bias
Neat article, I wish it went into more detail about liberal proclivities.
I have issue with this quote,
This research consistently finds that conservatism is positively associated with heightened epistemic concerns for order, structure, closure, certainty, consistency, simplicity, and familiarity, as well as existential concerns such as perceptions of danger, sensitivity to threat, and death anxiety.
The bolded I find to be applicable to both hard-line rightists and leftists. In my opinion, liberals in most instances believe they have the best solution to most problems, and feel that solution should be applied universally, at least within national boundaries, be it social or economic. Conservatives are similar, but with usually opposite beliefs with regard to social issues. Conservatives don't seem to fall in line here in economic terms.
It's an interesting article. One that makes me look back at the change of the political stratosphere throughout the history of the U.S. I feel like the early years of this country were populated by people with a large faith in self-reliance and self-preservation. Independent, achievers. As some achieve, and to be honest, impose their will with advantages on others, the playing field becomes less level. Then you have the rise of liberals (in the modern sense), those who (in a nutshell) look out for those less fortunate. Some of these come from the aforementioned class, but others of the privileged class. It's those of the privileged class who seem to have all the solutions for everyone else. It's they who feel they know what's best for others, which is where the stereotyping of elitest comes from.