Polling data also indicated the so-called millennials, voters between the ages of 18 and 29, said China and the national debt are their top foreign policy worries, said Generation Opportunity, a non-profit, non-partisan organization based in Arlington, Va.
"Young American adults are very concerned about the United States' ability to maintain its role as a global leader in the future if it continues on the same path as the last several years," said Paul T. Conway, Generation Opportunity president and a former chief of staff former Labor Secretary Elaine Chao. "They believe certain policies advocated in Washington, D.C., have weakened our national security."
The voting bloc, critical for Obama's election in 2008, believe taxes and regulations on U.S. businesses should be eased to effectively compete on a global stage and to prevent American jobs from going overseas, Conway said.
Fifty-five percent of young Americans said they weren't confident the United States will be a global leader in five years if the country maintains the same path as it has during the last few years, results indicated.
Asked to rank the greatest threats to the national security, the millennials listed the national debt, 59 percent; energy independence, 46 percent; indebtedness to foreign nations, 43 percent, and terrorism, 40 percent.
Results are based on a national online survey conducted July 27-31 with 1,003 adults between ages 18-29. The margin of error is 3.1 percent.