Your reaction if Sanders says this after DC?

[°Leprechaun]

It seems that the effect of Sanders overall is to move the Democratic party to a more truly progressive party. MORE FOR PEACE although there are other issues. It has been moving away from FDR who supported Glass Steagal and many other "radical" programs. The establishment is now being led by Clinton and they are all about keeping the status quo. That wing of the party is offering a saner choice that the extremely far right but the embrace such people as Joe Lieberman, Arlen Specter, and Robert Casey to name a few more "Republican like" Democrats. The fact that so many politicians have endorsed Clinton while fewer have endorsed nobody, and fewer than that have endorsed Sanders proves that the establishment Democrats are by no means a liberal or progressive.

If Sanders wanted to he could endorse Stein in states like Texas where Clinton is not going to win and therefore it wouldn't hurt Clinton in her attempt to defeat Trump. I think that he will do what he said he would do.