I've met and have spoken to Bernie over the years, and he;s actually a pretty level headed guy (though wrong on socialism). If he says there will be no blue wave, then it's likely there will be no blue wave.
I actually happen to think he's right. Seems everybody on the left quit crowing about the Senate (that's a clue to the fact they know they can't win the Senate). So, the house remains, and that is't looking so good for them. Some know, because their wildest fetishes are being said, hoping they MIGHT actually pull it off (even they know that isn't likely). Look, the MSM is already backpedaling, so what do they know? The left has lost, and will go down kicking and screaming, as they are right now.