I've never met a liberal who does. I know union democrats often do. I know socialist democrats always do. I know party democrats often do. But liberal democrats are of a different persuasion. Just because most of them have been corralled in with the rest of the democrats out of opposition to or fear of wrongly perceived potential Republican intentions, does not make them automatically believers in all the crap coming out of their own party, any more than conservatives are believers in all the crap coming out of their party.
I find that knee jerk politics coming out of both the major parties, and my Libertarian Party as well, only serves the particular party hacks and the superficial national news media, while working against increasing meaningful political communication between Americans themselves.