In many ways, vice presidential candidate Sen. John Edwards brings balance to the Democratic ticket. Edwards is everything Kerry isn't: He had a middle-class upbringing in the South and is young and outgoing. The Bush campaign has already made Edwards' career as a trial attorney an issue and may try to portray Edwards as an "ambulance chaser." Edwards is likely to emphasize his work representing the "little guy." Hear NPR's Renee Montagne and NPR's Adam Hochberg.