If you look at it, these court cases have been going on for a very long time, and we do not see any results. Perhaps there is not enough evidence, or perhaps the accusations are false.
He was just found guilty of 34 felonies. There's literally mountains of evidence in his other two cases, but he's waived his right to a speedy trial and is doing everything he can to delay any trial until after the election because A) More convictions will hurt his chances of being elected and B) He will have authority over the Dept of Justice if he is elected - so he can just order his AG to throw the cases out/potentially pardon himself.
I'd be interested and surprised if you know of any evidence at all suggesting the European Union has any influence over any of the federal or State criminal prosecutions in the US.