Evacuated yesterday after receiving calls of coordinated recorded threats of violence. Multiple school in at least 21 state received the threats. Many from the electronically disguised voice. None of the threats were credible. The fbi tells nbc news it is aware of the calls and that it is in touch with local Law Enforcement to provide assistance. Now, a similar wave of threats disrupted classes in l. A. , new york and back in december. The fight for the soul of the Democratic Party rages on as Hillary Clinton and Bernie Sanders sharpens the attacks. The Clinton Campaign says the time for debating is over. Clinton formally declined the debate saying her time is best spent on the Campaign Trial and focusing attention to the threat of donald Trump Presidency poses. Now sanders wasnt too thrilled with that response. This is what he said to a packed santa monica crowd. I was disturbed but not surprised to hear a few hours ago that secretary clinton has backed out of the debate [ crowd boos