Survey USA is a company that is famous in the United States of America for conducting a wide range of opinion polls that are commonly related with politics or political questions. They also conduct such things as market research for corporations and interest groups.
Most of there business is generated by television stations who use there results to help them gage public opinion on the current news events who can then fine tune there news broadcasts to better fit public opinion and increase ratings. If you would like to learn more about this company and the kind of polls they have conducted recently, then you might like to take a look at there official home on the internet at the address of www.surveyusa.com. This well designed site contains more information about Survey USA and how they work, news relating to the company, listings of there most recent polls and multimedia footage of some of the interesting events they have been involved in. 
