What Is Demagogy?

The sky caesar loudly protested how much it was against his will to be driven to seek support from the people, and how the senate's insulting conduct left no other route possible for him than to devote himself henceforth to the popular cause and interest. To me, he's not even a classic demagogue. And take this into consideration, because we we have this image in our mind of what the revolutionary the command of the people is,. What is a really effective person to to help out the guy?