The fact-challenged stateswoman, the face of the party of compassion but poor math skills.
Seems perfect to me.
From the Washington Post, of all places:
http://www.washingtonpost.com/blogs/fact-checker/post/nancy-pelosis-absurd-math-on-senior-citizens-losing-their-meals/2011/04/06/AFUf51rC_blog.html?hpid=z1
