Twitter has banned Russian media companies Russia Today (RT) and Sputnik from advertising on its service after it found that both had “attempted to interfere with the [2016 U.S.] election on behalf of the Russian government” using the social network.
https://techcrunch.com/2017/10/26/t...-and-sputnik-from-advertising-on-its-service/
https://techcrunch.com/2017/10/26/t...-and-sputnik-from-advertising-on-its-service/