If don't you listen, you don't hear:

http://www.huffingtonpost.com/entry/bernie-sanders-ann-coult...

https://www.mediaite.com/tv/elizabeth-warren-to-berkeley-pro...

re: Scalise Shooting: In a statement, Senator Sanders wrote that he had been “informed that the alleged shooter at the Republican baseball practice is someone who apparently volunteered on my presidential campaign.” He went on to say: “I am sickened by this despicable act. Let me be as clear as I can be. Violence of any kind is unacceptable in our society and I condemn this action in the strongest possible terms.” https://www.theatlantic.com/politics/archive/2017/06/scalise...

edit: and Obama on the BLM shooting in Dallas rightly called it a racist hate crime http://www.politico.com/story/2016/07/obama-dallas-police-sh...

That's my 5 minutes of doing your research for you. High ranking Democrat politicians don't tolerate heckler's veto, much less violence. Republicans are so cowed by losing support from their radicals that they can barely bring themselves to speak up against them. Charlottesville is notable in that its pretty much just Trump who failed to speak up.