At the rate Donald Trump is going, he will probably not be re-elected for president of the United States. His ratings are falling even with those who had voted for him. Even though Trump came into the presidency and made many changes, one of his changes would have to work and show the public that it is making great results. It is difficult to make results of changes within such a short period of time, but if that could happen, Trump would have a greater chance of making the 2020 presidency for re-election.
Another factor that will determine if President Trump is re-elected in 2020 is the other candidates that will be running against him. If there are a few new people running in 2020 that may make voters choose another candidate for presidency.