"We've had good days in Texas, good days in Ohio," Clinton said after shaking hands with diners who scrambled for books and scraps of paper for him to autograph. "She's doing very well."
Clinton sidestepped questions about whether his wife would pull out of the race if she lost in those states. Instead, he said he looked forward to making another visit to Pennsylvania before the state's April 22 primary.
Clinton then went to the University of Pennsylvania to participate in a symposium on race relations.
The event was one in a series at Penn marking the 40th anniversary of the Kerner Commission report, which said the nation was "moving toward two societies, one black, one white - separate and unequal."
The commission was formed by President Lyndon Johnson in the wake of race riots.
Clinton discussed how both government and individual efforts are necessary to ensure racial equality in America. He stressed the need to provide education and social services to prisoners and newly released inmates; to help minorities get into the banking system; and to make college more affordable.
"Government policy matters. The failure of government policy matters," Clinton said. "We should not have to have a riot in the streets to do the right things."
