I was on the Altered Egos radio program from Nanaimo, BC this morning, and we were talking about hypnosis, NLP and influence as it relates to political speech, advertising, etc.
I mentioned an awesome paper about Obama's use of hypnotic language and patterning - the paper can be found here. In most of its moral conclusions, the paper is far right and ridiculous (e.g. "Obama's actions are far more than simply lying").
However, in its analysis of Obama's use of language, the paper is worth a read. It's an excellent description of many hypnotic language patterns and how they can be used artfully to influence a large audience.