  In this paper, we study follower demographics of Donald Trump and Hillary
Clinton, the two leading candidates in the 2016 U.S. presidential race. We
build a unique dataset US2016, which includes the number of followers for each
candidate from September 17, 2015 to December 22, 2015. US2016 also includes
the geographical location of these followers, the number of their own followers
and, very importantly, the profile image of each follower. We use individuals'
number of followers and profile images to analyze four dimensions of follower
demographics: social status, gender, race and age. Our study shows that in
terms of social influence, the Trumpists are more polarized than the
Clintonists: they tend to have either a lot of influence or little influence.
We also find that compared with the Clintonists, the Trumpists are more likely
to be either very young or very old. Our study finds no gender affinity effect
for Clinton in the Twitter sphere, but we do find that the Clintonists are more
racially diverse.
