This is a good video made for South Carolina Primary Voters. It dispels the myth that firewalls and ads can overcome a Movement created by and is the grassroots campaign of Bernie Sanders.
I always check any url before exposing it on this website, and there was a url in the corner of this video. Every browser I checked it with produced an error, a safety alert, and would not open whatever was at the other end. I covered the url with a Bernie logo. The problem with the url may have been fixed by the time you are seeing this; if you want to try it, it is the hashtag on the left dot com.