I really do not think that the price of bitcoin is linked to the US elections. The stock market might have a change considering the policies they are planning to implement and i am not expecting the same change in the price of bitcoin even though i am hearing about the cryptocurrency regulatory framework for a very long time.
The US presidential elections of 2012 and 2016 had zero impact on the exchange rates of Bitcoin. I don't think that the situation has changed in a big way. If Biden is elected, the stock markets may go down for sometime, but that should not have an impact on the Bitcoin prices. Both the candidates are rather indifferent to the idea of cryptocurrency. They don't hate Bitcoin, and at the same time, they don't have any reason to love Bitcoin.