Hillary Rodham Clinton, speaking in North Carolina, called for a vote Friday in the Democratic-controlled Congress on a summertime suspension of the federal gasoline tax, a plan that Barack Obama dismissed as a political stunt that would cost thousands of construction jobs.
"All I hear about is gas prices. Gas and diesel, everywhere," Clinton said in Kinston, N.C. "Some people say we don't need to get a gas tax holiday at all, it's a gimmick ... I want the Congress to stand up and vote. Are they for the oil companies, or are they for you?"
Later, in Hendersonville, she added, "I know where I stand and I know where my opponents stand. ... Senator Obama doesn't want us to take down the gas tax this summer and Senator McCain wants us to, but he doesn't want to pay for it."
Clinton, who was speaking late this afternoon at Guilford College in Greensboro, has proposed making up the lost revenue by imposing a windfall profits tax on oil companies.
"It's a Shell game. Literally," Obama said to laughter from his campaign audience, adding it would mean little for hard-pressed consumers.
The Democratic presidential rivals highlighted their differences in ads and speeches across North Carolina and Indiana, two states with primaries Tuesday.
Polls point toward a particularly close finish in Indiana, which is next door to Obama's home state of Illinois.
Surveys show him with a dwindling advantage in North Carolina, and Clinton decided to spend all of Friday and Saturday in the state before returning to Indiana for a final push.
The two primaries have 187 national convention delegates at stake.
Obama, the front-runner, leads in the overall delegate competition, 1,736.05-1602.5. Clinton won a decisive victory last week in Pennsylvania and is counting on a strong run through the late primaries to persuade convention superdelegates to help her overtake her rival.
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