Of course Hillary's campaign has paid operatives pushing her message on social media. Every modern campaign worth its salt at any level (local, state, federal) actively posts on social media. Therefore, Donald's campaign is doing the very same thing. 

In addition to the relatively few paid operatives working for each campaign, there is a very large army of unpaid VOTERS supports/fans/activists of both Clinton and of Trump posting all over the internet's social media. You and I, by virtue of our posts on this forum, are included in that very large army.

The crucial point to grasp is that the paid operatives for both campaigns are swamped numerically by the incredibly large number of VOTERS/supporters/fans/activists pushing the message of one camp or the other on their own time, on their own dime. Therefore, it is absurd to belief that either camp could possibly CONTROL or DOMINATE social media.

If you don't understand that, then you don't understand the internet, period!

(continued)