Quite an interesting report by Media Matters. They feel those who say America is fundamentally conservative (or "center-right" to use the current popular spin) are proponents of a myth:
This report gathers together years of public opinion data from unimpeachably nonpartisan sources to show that on issue after issue, the majority of Americans hold progressive positions. And this is true not only of specific policy proposals, but of the fundamental perspectives and approaches that Americans bring to bear on issues.
Nor is the progressive majority merely a product of the current political moment. On a broad array of issues, particularly social issues, American opinion has grown more and more progressive over the past few decades. In contrast, it is difficult to find an issue on which the public has grown steadily more conservative over the last 10, 20, or 30 years.
Read the report here.