Needing a History Lesson

I think right now I’m focusing on more Fundamental understanding and clarifying what that looks like. I could do a bunch of research regarding what I’m about to ask, but asking seems like the smarter way to get an answer.

It’s an election year, and the country is in a bit of a swirl right now. Given the position the USD plays in the Forex market what can be expected to occur over the course of an election year to market conditions? Should a bunch of weight be attached to an election, or should it be watched but only weighed lightly? Has the market reacted to our US election cycle as of yet this year? If so, what were those reactions and how can that information be applied to predicting future price movement?

I hope that makes sense.

Thanks!