What passes for intellectual leadership on the Left is increasingly represented by celebrity entertainers on TV like Maher, Stephen Colbert and Joy Behar, just to name the first three harlequins who readily come to mind.
What they have in common is an attitude of contempt and disdain for those they consider beneath them, most often: traditionally religious folks who tend to reside in places they only see from the windows of their private jets. They employ mockery as though it were humor, and react to opinions at odds with their own as though they were evidence of either poor education (to be charitable) or Hitlerian sympathies (more likely).
These voices are the piped-in music of the Left's echo chambers. They are intended to induce a feeling of comfort and commonality among those who are already in the Democrat Diner, and who never intend to eat anywhere else.