A site I try to avoid, but should have substantial liberal chops, had an article about this. The problem with the Sanders' argument that getting out more votes means something for the down ticket, requires those extra voters to know what is at stake in those lower races. I don't think it's crazy to suggest that Trump and Sanders voters are going to be more likely to be ignorant of those stakes than their counterparts. This is a very Bernie-centric push, I doubt it does much good at all for Democrats in general. Which, sadly, they desperately need at state, local, and congressional levels. Hell, we all need that to balance out a bit more.