Twitter Are opinion polls fit for purpose? | News https://t.co/bY5wgO0PG5 #polls https://t.co/iI2KBSJ6u9 Are opinion polls fit for purpose? | News https://t.co/bY5wgO0PG5 #polls https://t.co/iI2KBSJ6u9 Mar 19, 2017 1 #polls