People walk past the building that houses the offices of Cambridge Analytica in central London, March 20, 2018. Share WASHINGTON Â Long before its controversial roles in the 2016 Brexit vote and U.S. presidential election, Cambridge Analytica influenced elections in Africa. The data mining company, under fire for its alleged use of 50 million Facebook accounts to shape campaign messages for then-candidate Donald Trump, also played a role in elections in Kenya and Nigeria, according to new reports.