The idea of a holiday from the federal gas tax is still a hot debate among the presidential candidates.
Today John McCain pushed for the break, saying it would help low income Americans.
For more on the potential impact a gas tax holiday would have, watch Andrew Moylan, with the National Taxpayers Union.
"I find people who are the wealthiest, who are most dismissive of a plan to give low income Americans a little bit of a holiday for three months so that they'll have something a little more to give to their children and enjoy their summer a little more," McCain said.
Hillary Clinton also supports the temporary relief, but Barack Obama says it would not solve the underlying problem.
I did not think they need a short-term gimmick. The oil companies will just raise the rates," Obama said.
Polls show Clinton is chipping away at Obama's advantage, but Obama is still ahead in the delegate count.
"My opponent says that's a gimmick. He doesn't want to take on the oil companies to make them pay the gas tax," Clinton said. "He'd rather you do it, and attack me cuz he doesn't have a plan for immediate relief."
The gas tax issue came as a new poll showed that most people are being squeezed by higher gas prices.
Six in 10 say gas prices have caused financial hardship for their family. One in five say it is causing severe problems, according to a CNN-Opinion Research Corp. poll released Monday.
That's a little less than those who said the cost of gasoline was hurting them a year ago. But eight in 10 say they consider it likely they'll be paying $4 a gallon sometime this yea. More than four in 10 say they expect prices to hit $5 per gallon.