Burning on the inside sounds like sex to me*, and that sound is amplified when it's coming out of Bill Clinton's mouth. Clinton's story is permeated with hidden — but not hidden enough! — sexual matters. So if Bill Clinton says that Barack Obama is outwardly cool but he burns on the inside for America, I'm getting the message that Obama is behaving like a gentleman but he really wants to screw us. (And obviously, Obama-haters will say he's been screwing us for 4 years.)Inspiration.
*What did Meade bring to their marriage?