dem·a·gogue also dem·a·gog ( P ) Pronunciation Key (dm-gôg, -gg)
n.
A leader who obtains power by means of impassioned appeals to the emotions and prejudices of the populace.
A leader of the common people in ancient times.
You say this as if it is a bad thing? What was he gonna do, go on the radio with Republicans as his audience and start advocating to save the whales?
If that's what he thinks they want to hear, yes.