There are precious few self identified "liberals" in this country. The people at the left end of the spectrum call themselves progressives. The people that the greed mongers call "liberals" is anyone who tries to insert come common sense into the discussion or to further any interest that isn't friendly to the hegemony of the corporate and monied elites. A teacher would be a fool if he or she would not be in a union if they could. That doesn't make them liberal. They are just looking out for their own interests. Yet a Limbaugh would call them liberal. Please also note that for years the word liberal has been exploited by empty headed echo chambers like Limbaugh.