Eine parteiische, aber dennoch interessante Analyse:
http://freebeacon.com/a-brief-history-of-obama/
"Wie Sarkasmus und Beleidigungen die Demokratische Partei übernahmen"

Der Autor zeichnet eine historische Linie von der schäumenden Wut der linken Intellektuellen auf George Bush zu einem Wahlkampfstil Obamas, der sich vorzugsweise von der Late-Night-Comedy und ihren Ikonen inspirieren lässt.

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The criticism of Bush, of Bush Republicans, and of the war took on a specific character. The spokesmen of movement progressivism—Keith Olbermann, Rachel Maddow, Jon Stewart, and Stephen Colbert—spoke in tones of irony, sarcasm, knowing disbelief, glibness, and snark. Liberal bloggers and op-ed writers used the same voice. A television clip of a conservative would be played, a quotation cited, and the liberal would mug for his audience, whether on screen or on the page. Their basic attitude was: Can you believe this? These people don’t even believe in science! The fools! Derisive and smug laughter would ensue. The war was not going well, America seemed in decline, and it was obvious to liberals that conservatives and Republicans were to blame. The punch lines were a signal. If you laughed, you differentiated yourself from the fundamentalist prigs running the country. You established your superiority.

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Obamas campaign seizes on the most trivial comments—“I like Big Bird”; “Binders full of women”—to engage in juvenile jibes that would not make the first cut at the Late Show writers’ meeting. His rallies have become self-congratulatory comedy hours in which the assembled Democrats laugh heartily at the insults and zingers the president throws Romney’s way. Obama has been on a seemingly nonstop tour of television shows hosted by late-night comics.

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