WASHINGTON - Hillary Clinton and Barack Obama are both hoping for wins in the tight battle for the Democratic nomination.
One of the key issues is the debate over lifting the federal gas tax for the summer.
NC, IN Voters to Settle Largest Remaining Primaries
The primary season is coming down the home stretch.
Voters in North Carolina and Indiana are casting their ballots today with a combined 187-delegates up for grabs, making them the biggest primaries left in the long battle between Clinton and Obama.
Click the play button for a Newswatch interview with Jim Antle of "The American Spectator."
Despite their hard-fought struggle, not all voters see that much difference between the two.
"We are definitely going to go Democrat all the way. If Hillary is not our gal than Obama will be," one voter said.
"I don't see too much difference," said another voter.
But the candidates couldn't be any more different when it comes to the politics of oil.
On the Matter of the Gas Tax…
With prices at the pump reaching new highs Monday, it gave Clinton fresh fuel to push her plan for a three-month summer gas tax holiday.
"I believe that we should start standing up for the vast majority of Americans who are paying these outrageous prices," Clinton said.
Obama pans the gas tax idea as a gimmick, which hasn't gained much traction in Congress.
He also says Clinton is not being straight with the American people in her latest salvo to break up OPEC's monopoly.
"You say you've been in the White House for eight years. You had two terms as a U.S. senator and haven't said a word about OPEC. And, now suddenly you're going to take it right to OPEC?" Obama challenged.
The Blue Collar Vote
Both candidates have been trying to reach out to blue collar workers.
But Obama has had to fight harder, trying overcome elitist charges from Clinton and Republican John McCain.
"My upbringing was more reflective of working class black and American voters than John McCain's father, being the son of an admiral or Hillary Clinton up of the suburbs of Park Ridge," Obama said.
Polls put Clinton ahead in Indiana with a slight lead.
But Obama, who's still ahead in overall delegates, is favored to win delegate-heavy North Carolina - though Clinton has cut into his one-time double-digit lead.
Clinton is banking on support from superdelegates and hoping unresolved Michigan and Florida will help her bid for the nomination.
"As this train goes by we think that it's taking us to the future and we all going to be on it. Let's go win an election!" she said.
Pundits had been predicting that if Obama wins today's primaries, it could spell the end for the Clinton campaign. However, both candidates say they expect the primary race to go on for at least another month.