Every political community includes some members who insist that their side has all the answers and that their adversaries are idiots. But American liberals, to a degree far surpassing conservatives, appear committed to the proposition that their views are correct, self-evident, and based on fact and reason, while conservative positions are not just wrong but illegitimate, ideological and unworthy of serious consideration. Indeed, all the appeals to bipartisanship notwithstanding, President Obama and other leading liberal voices have joined in a chorus of intellectual condescension. ..
This condescension is part of a liberal tradition that for generations has impoverished American debates over the economy, society and the functions of government -- and threatens to do so again today, when dialogue would be more valuable than ever.
It's been awhile since I suggested you "read the whole thing", but you should read the whole thing.