Sixteen Senators and four Representatives -- all Democrats -- have sent a letter to the Federal Election Commission (FEC) asking it to take a closer look at how a Russian online influence operation was able to buy advertising in an effort to sway the 2016 election.
In read, in part, "We encourage the Federal Election Commission to take immediate steps to understand the threats posed to our democratic process by foreign influenced internet and social media advertisement, and to promulgate new guidance on how advertisement platforms can better prevent foreign nationals from illicitly spending in future U.S. elections."
CNN Money reports the lawmakers have asked for a response by October 4th.
At the same time, a spokeswoman for Senator Mark Warner (D-VA) tells CNN the ranking member on the Senate Intelligence Committee plans to craft legislation that would require disclaimers on online ads showing who paid for them, not unlike what currently appears on radio and television.