Answer: Gallup Poll and Harris Poll are 2 organizations that created way for get data on the opinions of Americans. They're also the two best known and most widely recognized kinds of public opinion polls, both used and referred to for political analysis, though one is used more than the other. The Harris Poll was made in 1962, and uses phone and internet surveys to collect data. The Gallup Poll uses in-person surveys, and is mostly used to provide election results.