The Collaborative International Dictionary of English v.0.48:

demagoguery \demagoguery\ n.
   1. impassioned appeals to the prejudices and emotions of the
      populace.

   Syn: demagogy, demagogism.
        [WordNet 1.5]

WordNet (r) 3.0 (2006):

demagoguery
    n 1: impassioned appeals to the prejudices and emotions of the
         populace [syn: demagoguery, demagogy]

Moby Thesaurus II by Grady Ward, 1.0:

21 Moby Thesaurus words for "demagoguery":
   debating, declamation, demagogism, elocution, eloquence, forensics,
   homiletics, lecturing, oratory, platform oratory, public speaking,
   pyrotechnics, rabble-rousing, rhetoric, speaking, speechcraft,
   speechification, speeching, speechmaking, stump speaking,
   wordcraft