Personality and zip code can help explain differences in political ideology, according to a new study from Northwestern ...

Conservative voters have slightly larger amygdalas than progressive voters—by about the size of a sesame seed. In a replication study publishing September 19 in the Cell Press journal iScience, ...

Politically-driven vaccine resistance renders persuasion efforts all but futile in that segment of the population. A different, but still potent, obstacle is posed when trying to persuade those ...

The partisan identification of registered voters is now evenly split between the two major parties: 49% of registered voters are Democrats or lean to the Democratic Party, and a nearly identical share ...