Publish all Vote Leave's data, campaign chief challenges Facebook

Dominic Cummings says move would prove campaign did not use data gathered improperly by Cambridge AnalyticaThe chief strategist of Vote Leave has called on Facebook to publish all the data it holds on his Brexit campaign group, challenging the social network to adopt a policy of radical transparency on the impact of targeted online adverts during the EU referendum.Dominic Cummings said he “wouldn’t mind if Facebook wanted to take ALL of Vote Leave’s Facebook data” and put