Clinton says wife a 'world-class genius'

(Yahoo News) - Former President Clinton says his wife is a "world-class genius" when it comes to improving the lives of others.

Clinton stuck mostly to familiar themes in two hour-long appearances Thursday, describing at length what he views as the nation's biggest challenges. Nearly 15 minutes into his first speech, he added almost as an afterthought that "everything I'm saying here is my wife's position, not just mine."