Products and Campaigns
Political opinions are often some of the most emotionally endowed views that people hold. Therefore, sentiment analysis meshes with politics quite well as voting behavior, campaign success, and partisan changes are rarely completely rational. It is evident in past elections that calculated expectations do not always become reality. One must pay sufficient attention to the sentiments expressed about campaigns, candidates, legislative bills, and presidential job approval.
All of these subjects are constantly discussed on forums, social media, and article comments, so scraping them is an ideal - if not the only - method for extracting such data.