This is the training data used to produce the results shown in the paper listed below.
Source: Sampled public tweets from Twitter streaming API.
Date range: 6 weeks prior to the 2010 Congressional midterm elections.
Three networks of political communication between Twitter users
Michael Conover, Jacob Ratkiewicz, Matthew Francisco, Bruno Goncalves, Alessandro Flammini, and Filippo Menczer. Political Polarization on Twitter. Proc. 5th International AAAI Conference on Weblogs and Social Media ICWSM, 2011.