One post I read on a website or blog, I forget where, states that Obama will not get to finish his term and when the end of days comes, Obama will have been the last president. Yet on another post I read states that Trump will be the next president because he's been chosen by God. Now if Mr. Trump is chosen by God he will not be the next president but the King of the USA. Apparently he was chosen by God to bring back the nation as it was. But then again on another post the USA will be destroyed because it had turned into a second Sodom and Gomorrah.
Now whom are we to believe?
You cannot believe everything you read on the internet. But the theories are so divergent and contradictory that it's hard to try to work through all of them and get to what makes sense and what is garbage. Clearly some of it has to be garbage. My advice is when you read about prophecy, outside of what is actually written in the Bible, read it with a healthy dose of skepticism.