If you have time, you should really read this piece in the Portland Mercury, http://www.portlandmercury.com/portland/one-fine-day-in-the-swamp/Content?oid=3005863

The following quote is very thought provoking...

"In hedging between the political and entertainment worlds, Stewart [Jon] is able to have his cake and eat it too. He can engage on his own terms without being forced to answer for or speak out on any issues outside his wheelhouse. Those who govern are not so lucky. Politics are corrupting, or so they say. So, too, is celebrity. And here Stewart stands, with one foot in each, doing an admirable job resisting the pratfalls. But is that enough?"