https://www.reuters.com/article/us-usa-tech-congress-warner/congress-should-act-on-foreign-interference-in-elections-u-s-senator-idUSKCN1LL20N >U.S. Senator Mark Warner told the Senate Select Committee on Intelligence on Wednesday that Congress will need to act to stop foreign bad actors who use social media like Facebook Inc and Twitter Inc to interfere in U.S. elections.