Politics Talk. Bernie is scaring the dogshit outta the Dems...but why?

This is absolutely disgusting on @HardballChris’s part. pic.twitter.com/XhEZlYRAED

— Parker Molloy (@ParkerMolloy) February 22, 2020

This is curious.  The Dem leadership (to include members of the media) appear scared shitless by Bernie possibly being the nominee.  But why? At the same time they're recoiling from a possible Bernie at the top of the ticket they keep saying that the party is moving left.  So why the fear?  From my chair it just doesn't make any sense.  Anyone have any ideas?