For a normal person, an Instagram post endorsing a certain candidate during a midterm election wouldn't be a big deal — but then again, Taylor Swift is not a normal person.
At the time, Taylor had 112 million followers on Instagram, and the post caused a huge spike in voter registration, but it could very easily have backfired. In the discussion prior to the publication of the post, one member of Taylor's team suggested it would "halve the number of people who [go to] her next tour". Her dad, Scott, said the prospect of her speaking out had him worried for her safety.
But Miss Americana makes it very clear that Taylor Swift no longer cares about her "good girl" persona if it means she can't fight for what's important to her.