Nature of the Sample: 1,118 US Residents

This survey of 1,118 United States residents was conducted on April 1^st -3^rd , 2009. Residents 18 years of age and older were interviewed by telephone. Telephone numbers were selected based upon a list of telephone exchanges from throughout the nation.  The exchanges were selected to ensure that each region was represented in proportion to its population. Results are statistically significant at ±3%. There are 928 registered voters. The results for this subset are statistically significant at ±3.5%.  The error margin increases for cross-tabulations.