CBS News reports: 

During the question and answer session, an 82-year-old woman encouraged Obama not to attack his opponents. “Don’t hit on Hillary, bring us all back, let her do that stuff,” said Jean Weiss, a Wilmington resident. “Leave her alone, you don’t need to do that, you are higher than that. Bring us up higher than that.”

“Will you be my running mate?” Obama asked as the crowd cheered. “That’s my running mate there, she got me fired up!”