The public has broad concerns about the impact the national debt will have in the future. According to a Gallup poll conducted in February, 73 percent of Americans said they were "very concerned" about the impact of the amount of U.S. debt held by other countries' on the U.S. economy.
When asked which candidate they trust to do a better job of handling the federal budget deficit, 51 percent sided with Romney, compared to 38 percent for Obama, according to an April ABC News/Washington Post poll.
Yet polls show spending and the debt distantly trailing jobs and the economy as the top campaign issue.
Still, May DeHaan, a Des Moines-area Romney supporter who attended his speech, said it's all one issue.
"They are totally entwined. The government can't continue to pay for things when people don't have jobs," said DeHaan, who works for a Des Moines insurance company.
Associated Press writer Jim Kuhnhenn and News Survey Specialist Dennis Junius in Washington contributed to this report.
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