The outpouring of support for Bernie Sanders has included a lot of labor people. That has made labor executives worried. First, Richard Trumka reminded state federations and locals that they don’t have the right to endorse anyone. Then, the American Federation of Teachers came out and endorsed Hillary Clinton.
This doesn’t surprise me and is pretty unfortunate, but is understandable. Union leaders are a lot less interested in primary politics and supporting (likely) losing primary campaigns from the left than in creating solid support from the likely winner. They want to make sure they are close to President Hillary Clinton rather than primary runner-up Bernie Sanders. You might say that unions should be about democracy and their members should have the right to endorse the candidate who most represents their views. I might well say you are right about that. But in the hard realpolitik world of modern class-based politics, with unions facing death, one can see why Trumka, Weingarten, and other labor leaders (expect an SEIU endorsement of Hillary very soon), would rally around the winner and hope to be closer to her inner circle.
But if the Bernie surge continues and he develops a shot to win, labor is going to look pretty bad here.