We’ll never know how much Russian meddling affected the 2016 election. It’s hard to quantify.
Here’s a column from 538 which thinks that other things caused the outcome more than Russia.
Here’s a contrary view from a column on CNN . The author states that Trump’s margins in the states that put him over the top was so small that Russian meddling made the difference.
Russia must have thought their activities made a difference because they continue to use social media to support Trump. Sad!