Checkout some of his many problematic videos in this thread:
Donald Trump & Hillary Clinton ~ RAP SONG (The Oligarchy) via @YouTube
@BernieSanders just hired him as a member of his video team.
MLK's famous "I Have a Wet Dream" speech
I guess she found his MLK, Jr funny.
#Shame on @BernieSanders for keeping someone on staff who created these vile videos but who also can't apologize for how offensive they are now.