Despite numerous investigations by various commissions, there is still no evidence about Russia’s influence in the 2016 US presidential elections.
There is numerous evidence presented on the Russian attempts to influence the US elections. See the US Intelligence Community report "Assessing Russian Activities and Intentions in Recent US Elections”, Twitter's has banned ads on RT and Sputnik over election interference. Facebook acknowledged that it had discovered 3,000 ads from 470 accounts connected to Internet Research Agency (the name of the infamous troll factory in St Petersburg https://www.nytimes.com/2015/06/07/magazine/the-agency.html). It's since revealed that those accounts collectively created 80,000 pieces of content that may have been shared, both organically and through ads, with 126 million people.