I'm not so certain. Money talks.
In the USA, our former President, Donald Trump, was curiously in line with many positions favoring Russia - Trump questioned the need for NATO, pushed back on evidence that Russia supported his election, dismissed accusations that Russia had a bounty award for killing American soldiers, and so forth.
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In both the USA and the UK and indeed across likely al democracies, Russia has engaged in social media warfare - seeking to provoke maximum discord while simultaneously promoting its various positions.
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Russian interference in western politics isn't decisive - nonetheless, I think it's definitely had an impact.