How do the people we vote for differ from the general population?

Both in their positive aspects, as well as in negatives.

They are probably more extroverted, as a rule, and more determined. Are they more interested in status? Is this good? Are they bound to be more responsible and willing to work hard? What else?

This question was inspired by “Quiet” – an excellent book about introverts. I’m paraphrasing, but the author mentions an experiment done on new Harvard students. They have to choose items to take on a deserted island. Apparently, during this exercise, the list is regularly influenced by the loudest students, rather than those with the best ideas. That made me think.