p. 328
Quote:
Findings from several studies also indicate that the associations between personality traits and political variables can vary across cultural contexts, political systems, and other situational factors. For instance, Sibley and colleagues (2012) suggested that those higher in Openness to Experience are more likely to develop a liberal ideology when their environment is relatively safe to express creativity and their interest in novelty as opposed to when their environment is unsafe and perceived as threatening. Nonsignificant and even reversed relationships of Conscientiousness and Openness with political conservatism have also been observed in samples collected in post-Communist countries in Eastern Europe (Oniszczenko and Jakubowska, 2005; Roets, Van Hiel et* al., 2014; Thorisdottir et* al., 2007). Against the recent historical background of totalitarian, left-wing regimes in Eastern Europe, those high on Openness are more likely to push back against ideologies emphasizing egalitarianism at the cost of individual freedom.
It doesn't seem to specifically address cognitive ability but openness is correlated with it.