AP reported they have contacted all of the Democratic Superdelegates last week and all but 45 will vote for Clinton.
"She has 520 currently right now. Almost 70% of her current Super delegate count came before the Primary even began. She has gained 161 super delegates since voting began. 
Bernie has 39. He has gained 31."
I was very concerned with the report Bernie supporters are harrassing these delegates.  They aren't changing and Sander's campaign guy Jeff Weaver just said--"none contacted will vote differently."