It seems like the Sander's camp is pretty worried about Buttigieg. They've been attacking him non stop the last week, to the point of mischaracterizing facts and releasing hit pieces(I'm looking at you Young Turks).
Edit: This kind of behavior is making me relive 2016, lol. I'm gonna vote for Sanders if he's the nominee, but if this continues I'll do everything in my power to stop that from happening.
It's hilarious that they're trying to attack him for 'comparing' Bernie to Trump when Bernie's campaign manager literally did the same thing a few weeks ago.