Eric Schmidt, the CEO of Google, is an Obama adviser and his next meeting with the boss is going to be as fun as that time I had to explain this site to my mom.
"For most of the past week, when someone typed "Michelle Obama" in the popular search engine Google, one of the first images that came up was a picture of the American first lady altered to resemble a monkey." - CNN
I've spent the better part of my adult life marveling at fate's cruelty understanding and exploiting the way Google determines what search results appear at the top of their list. In short, the more respected sites that link to an image or page, the higher it appears in the search results. This Michelle Obama gaff isn't an indicator of a flaw on Google's well developed algorithm. Their math is wicked awesome. It simply reveals what content is well linked and trafficked. Draw your own conclusion on why this image would fit that category.
While you're doing that, realize that even the morphed picture of Michelle is sexier than Google's top images of Barbara Bush. Its important to tell you, I'd rather have sex with a belt sander.