David Gergen , Romney : Romney appears to have an edge in Barack Obama contest . They say the question is how well he would fare in a race against GOP . Romney wound up as the opening act for Michael Zuckerman in a Florida appearance . Authors : Chris Christie of New Jersey at a rally in Exeter , New Hampshire , drawing one of the biggest crowds of his campaign . Romney needs to show he can be the headliner .
David Gergen , Romney : Romney appears to have an edge in Barack Obama contest . They say the question is how well he would fare in a race against GOP . Romney wound up as the opening act for Michael Zuckerman in a Florida appearance . Authors : Romney needs to show he can be the headliner .