At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga.
Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus.
Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
Hi Ashwin, long time no see. ;)
Sociology is the study of society, and a campaigning politician would use his knowledge of societal norms and culture to make strategic decisions about which issues to promote (or avoid) and how to communicate with the public.
I am not sure that many of them use overt sociology, but he may have a working understanding of sociology as it is related to his development of his political views. Barack obama has an extensive background in sociology, specifically stratification. They all may have researchers used to uncover trends, especially the less principled ones. Actually sociology is more beneficial than Political Science, and the understanding of society could immensely benefit him. I am not sure than many of them have a great sociological understanding however, especially the very pro capitalist strand of the republican party.