Pop superstar Taylor Swift is in Melbourne on her wildly popular tour and for some her appearance at the American Super Bowl was more exciting than the football game itself. 

But perhaps more intriguing is her role in the upcoming US election. 

Today, we look at whether a Swift endorsement of Joe Biden would help him win and why Trump supporters are so willing to believe conspiracy theories that she’s in cahoots with the White House.

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Dr Matt Harris, Associate Professor of Political Science at Park University in Missouri