I think this link bait campaign is both brilliant and problematic. The pros are that it takes advantage of a current hot topic, one that's generating constant buzz and attention: the upcoming presidential elections. I think that "Don't Trust This Man" is an extremely clever concept--it's definitely attention grabbing, and it both sparks curiosity in the uninformed user and is controversial to a politically-savvy user. Best of both worlds, I'd say.
Now for the cons. As I mentioned before, the topicality of the link bait is weak. Using a political agenda to promote plumbing merchandise may be questionable in the search engines' eyes. Additionally, I wonder about the relevancy and topicality of the links that Plumber Surplus will attract from these various blog posts. They likely won't be from other home improvement stores or wholesalers, but rather from regular folks with personal blogs or websites or from political sources. Thus, will the links hold much weight since they won't be on-topic?