Survey Methods
Results are based on telephone interviews conducted as part of Gallup Daily tracking January 2010 through April 2011, with a random sample of 238,673 adults, aged 18 and older, living in all 50 U.S. states and the District of Columbia.
For results based on the total sample of national adults, one can say with 95% confidence that the maximum margin of sampling error is ±1 percentage point. The maximum margin of sampling error will be larger for subgroups of veterans and active-duty military.
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