Aides say Michelle Obama honing message for fall

(CNN) - With the general election campaign now in full bloom, Michelle Obama - wife of presumptive Democratic nominee Sen. Barack Obama - is honing her message for the fall, aides say.

"Michelle wrote her own stump (speech). And you know, she's refining it now I think as we're going into the general election," said senior Obama adviser Valerie Jarrett. "We have an opportunity for her to kind of step back and think about the message she wants to deliver. So she's really working on it as we speak."

Aides said Michelle Obama's new speeches will include more details about her family and humble upbringing on Chicago's southside.