Yeah, this is a really curious choice on his part. He should have chosen literally any other elective office.
It's not like Milne is a particularly strong candidate, and I don't think he's very bright either judging from a lot of the statements and decisions he's made. He's a some dude that did well because a) it was 2014 and b) he was Not Peter Shumlin. And it tells you something that single payer is so toxic in ultra liberal Vermont of all places that the incumbent governor nearly lost re-election to a some dude from a crippled political party for merely proposing it. Yet apparently, it's supposed to work nationally with a closely divided country and a right wing Congress, if we just scream loud enough. 
I really wish the media pressed Sanders harder on why single payer failed in his own home state and what he did (if anything) to try to save it. IIRC, when it was mentioned in the debate he just shrugged it off and blamed Shumlin.
Milne wasn't a some dude. In 2006, he almost lost to Shumlin in a State House seat by about a hundred votes(.5%). Furthermore, his parents served a combined seven years in the House.
That said, maybe Dubie will run in 2018 if Sanders retires.
