Are the Democrats jumping off the cliff?

Even more disturbing is how the candidates have taken the bait and gone so far as to criticize and condemn President Barack Obama, a man with a popularity rating greater than 90 percent among Democrats in virtually all polls. Why in God’s name would these candidates, no matter how liberal, decide it was wise to rip into the former president?
https://thehill.com/opinion/campaign...-off-the-cliff

I don't think so. The eventual candidate will race to the center as soon as she/he is official.