In an interview with the New York Times magazine, former New Hampshire governor and Romney surrogate John Sununu explains what he meant when he said President Obama used a Southern accent as "phony as his jaunt." 

Every time you see him climbing up or down stairs, he elevates his arms and does this pumping, trying to look like a well-trained and trim dynamic individual. It’s something he does all the time, particularly when he’s climbing up to a podium to speak or address a crowd. This president understands that he got elected on the basis of style and not substance, and I think he’s trying to preserve style.