I know both parties are guilty of deception in their advertisements, so I just picked one from the side that offends me more. While on the official website for Senator Barbara Boxer (D-CA), I noticed a handful of tactics described in unSpun, as well as an explicit example from it. The website claimed, among other things, that:
1".Boxer wrote the law to ensure that drinking water standards are set to protect children and other vulnerable populations and fought the Bush Administration’s attempt to allow more arsenic in drinking water. "
As we all read in unSpun, Bush 'allowing more arsenic in drinking water' actually meant Bush trying to reduce the current arsenic levels, just not by as significant a margin as the opposition was hoping for.