> The vast majority of voters on both sides viewed Trump's election as legitimate

In 2018, 66% of democrats believed it was “probably true” or “definitely true” that Russia “tampered with vote tallies” to help Trump win the election. That’s a majority of voters on one side.

Note this poll was taken a year and a half after the poll you cited. This emphasizes the point that the media drove this issue as a wedge through the populace and corrupted its viewers’ faith in the election.

https://today.yougov.com/topics/politics/articles-reports/20...