The price of Bitcoin fluctuated slightly when Trump but it went back to normal after a few days. I assume that the market has got used to the US elections and that the campaign promises of any candidate are not affecting the market anymore. The last election had no impact and I guess it might never have any future impact. However, Trump has said he is not having a third debate, so this question might be unnecessary.   

Historical September has not always been a good month for the market. But he saw a recent increase in price mainly because of the cut of interest rates by the Feds. Some people are predicting that there might be some dumps which will drop the price, while others believe the price will keep increasing till next year. Nothing is certain because the global political and economic space cannot be predicted.