This from jacobin is on point, but is far too generous to some tremendously pisspoor analysis by Nagle/Tracey.
If you're arguing twitter/youtube ought to have provided advantage to sanders, and it's damning that it didn't, log off. https://twitter.com/meaganmday/status/1264936992397090817

Nagle/Tracey point to the unity "task forces" set up after Sanders' exit from the race as evidence he is pretty close to the establishment himself.
They are literally the only people on the left taking these task forces seriously.

I was going to add to this thread with more dismissals of stupid points from Nagle/Tracey but I honestly just read like 7 more grafs without finding a point.