https://www.recode.net/2018/3/19/17140100/facebook-cambridge-analytica-audit-trump-stroz-friedberg >Facebook has hired an outside auditing firm to figure out if Cambridge Analytica, the analytics firm used by President Donald Trump during the 2016 election, still has Facebook user data it promised to destroy back in 2015. >The audit, which Facebook says Cambridge Analytica will comply with, is the latest move to stem a controversy that erupted over the weekend.