If you say history repeats itself, when was Trump last assassinated? I really do not understand this.

This has to do with the biblical concepts of "types" and "shadows". For example: The ancient law of animal sacrifice was given as a "type" to prefigure the sacrifice the Son of God would make. The sacrament of the Lord's supper is now eaten as the "shadow" of that event.

i.e. events in the past prefigure events in the future.

It's a biblical concept which requires an acceptance that the bible is of relevance first. Only then does this concept have any meaning. It is anathema to a purely scientific, natural or materialistic approach.

Trump continues to poke the Iranian bear and, from a biblical perspective, the bear of the book of Daniel is the Persian empire; which is modern day Iran. Ancient Persia took over the babylonian empire by removing it's king. America, as the most powerful and uncontested nation in the world today, very easily matches, in many ways, the Babylonian empire. Babylon is its type and past events there prefigure events that will befall modern babylon.

This is very high level but gives the basic gist. There are a lot more finer details that would require a book to explain.