It has been a busy weekend of election watching with some stupendous results. In Belgrade, the Russian friendly Aleksandar Vucic conceded defeat when a grass roots student movement on an anti corruption platform ended his 12 year hold over Serbia. In Brazil, "Lula's Army" - a ten million strong WhatsApp group - helped the 80-year-old defeat the son of Trump's mate Jair Bolsonaro.What does this mob…