Sens . Hillary Clinton and John McCain back federal gas-tax holiday . She said the Republican 's proposal would cost the government up to $ 10 billion -- money that is used to improve roads . Sen. Clinton says plan would do more harm than good . Florida Gov . Mike Easley endorses John McCain . Hillary Clinton in North Carolina as part of weeklong health care tour .
Sens . Hillary Clinton and John McCain back federal gas-tax holiday . Sen. Clinton says plan would do more harm than good . Florida Gov . Mike Easley endorses John McCain . Hillary Clinton in North Carolina as part of weeklong health care tour .