In 2016 they celebrated right up until late afternoon on election day. :)
One gets the distinct sense that even the Russia-fever media don’t believe a word of these polls.
They have nobody but themselves to blame for two reasons: 1) polls have already been rendered nearly moot after 2016 and 2) fascist tactics by media, education, social media firms and government have sent many people ‘underground’ ie they lie about their political affiliation or claim none at all.