https://www.reuters.com/article/us-usa-trump-russia-fec/u-s-election-agency-seeks-comment-after-facebook-cites-russian-ads-idUSKCN1BP2ZR >The U.S. Federal Election Commission voted on Thursday to seek public comment on possible regulatory changes after Facebook Inc said that Russians bought ads on the No. 1 social network during the U.S. presidential campaign.