https://www.recode.net/2017/10/19/16503006/facebook-google-twitter-russia-senate-political-ads

A trio of top Senate lawmakers is commencing a new push today to regulate the political ads that appear on Facebook, Google and Twitter, as Congress seeks to thwart the Russian government from spreading disinformation ahead of another U.S. election.

The new bill is called the Honest Ads Act, and it’s the brainchild of Democratic Sens. Mark Warner and Amy Klobuchar. In recent days, they’ve also enlisted critical Republican support from Sen. John McCain. Their measure, in short, would require tech giants for the first time to make copies of political ads — and information about the audience those ads targeted — available for public inspection.