Mrs . Hillary Clinton and John McCain back federal gas - tax holiday . President Barack Obama says it will do more harm than good . North Carolina Gov . Mike Easley endorses Clinton . McCain in Florida as part of weeklong health care tour .
Sens . Hillary Clinton and John McCain back federal gas-tax holiday . Sen. Barack Obama says plan would do more harm than good . North Carolina Gov . Mike Easley endorses Clinton . McCain in Florida as part of weeklong health care tour .