A demagogue, or rabble-rouser, is a political leader in a democracy who gains popularity by arousing the common people against elites, especially through oratory that whips up the passions of crowds, appealing to emotion by scapegoating out-groups, exaggerating dangers to stoke fears, lying for emotional effect, or other rhetoric that tends to drown out reasoned deliberation and encourage fanatical popularity. Demagogues overturn established norms of political conduct, or promise or threaten to do so.

A commoner, also known as the common man, commoners, the common people or the masses, was in earlier use an ordinary person in a community or nation who did not have any significant social status, especially a member of neither royalty, nobility, nor any part of the aristocracy. Depending on culture and period, other elevated persons may have had higher social status in their own right, or were regarded as commoners if lacking an aristocratic background.