http://www.washingtonpost.com/blogs/the-switch/wp/2018/05/24/whos-behind-those-political-ads-on-facebook-now-you-can-find-out/

Facebook and Twitter forged ahead Thursday with new efforts to disclose more information about the political advertisements that appear on their sites, part of a broad campaign to help users better understand why they see the content they do and who’s behind it.

For both tech companies, the stakes are high ahead of the 2018 midterm election, two years after Russian agents spread propaganda – through ads and other posts – on social media sites in a bid to create social and political unrest in the United States during the 2016 presidential race.