I read some speculation on that as well.  Lots of MSM appearances booked for this week and next(?).    Someone floated the idea that all the D candidates were going bat poop crazy with their policies on purpose so that D/americans would become distressed and reject all of them. Then they could trot out Hillary with reasonable sounding policies (a breath of fresh air, trusted politician and savior of our country) gak) which would mobilize the D base and bring in a united victory for the democrats. I thot that was a well-reasoned argument.