A section of the left is wedded to a view of the Democratic Party – and it goes back more than a half century – that resists any adjustments in its thinking and practice no matter the alignment of class and social forces, no matter the election’s stakes, no matter the shifts in thinking in a progressive direction among Congressional Democrats. I suspect that we will see this dynamic in full play this fall once again. On the other hand, millions of people, including people on the left, don’t subscribe to this mode of thinking.