https://www.theverge.com/2017/9/25/16360674/facebook-political-ads-regulation-fec

Facing mounting criticism, Mark Zuckerberg announced last week that Facebook will overhaul its approach to political ads, bringing more transparency to the process. Facebook users will soon be able to see who paid for an ad, Zuckerberg said, and when users visit an advertiser’s page, they will be able to see all of the ads that those advertisers are running. The changes were announced as lawmakers were considering similar regulatory measures.