I don't take these surveys and data as a measure for the notion of politics in hhe states. I think US people are neither leftist nor rightist. I'm saying this because US still is one of best products created by democracy. There are many countries which have democracy but due extremism being very effective there, they have established far right and far left. USA, imo, doesn't exercise a little fraction of extremism as is done in many Democratic countries such as Pakistan.