http://www.techradar.com/news/new-bill-seeks-more-transparency-for-political-ads-on-facebook-google-and-twitter

Three US senators have just introduced the Honest Ads Act, a new bill that seeks to bring greater transparency to political ads displayed on internet services such as Facebook, Google and Twitter.   

The bill comes to the fore as congressional investigations into Russian interference in the lead up to and during the 2016 election continue. The Honest Ads Act is sponsored by Senator Mark Warner (D-VA), Senator Amy Klobuchar (D-MN) and Senator John McCain (R-AZ).