Politicians and the media generally like to talk about the middle-class.
On the rare occasion that any of them mentions the working class, they always put the word "white" in front of it.
It leaves one with the impression that blacks are a monolithic entity, and thus are single-issue voters. This impression, which does the black community a tremendous disservice, breaks down under close examination.

The Sanders campaign has a new member...and he is a heavy hitter....William K. Black

Banking Expert Who Exposed Savings & Loan Corruption Joins Sanders Campaign