In the United States, liberals and conservatives do not only differ politically. They also live separate lives in the physical world.
A philosopher argues that people in today's world are not paying attention to others' views because they live in echo chambers, where they do not trust contrary evidence.
Are Democrats or Republicans more caring about others? One study of the role compassion plays in politics provides some surprising answers. And then there were the outliers: Trump voters.
The new Congress is divided into a GOP Senate and Democratic House. History provides a glimpse of what this could mean: Democrats hold the power to investigate, if not to legislate.