2 November 2016 Last updated at 21:48 GMT
He's one of the most controversial people to ever try to become president.
In this very divided election, his supporters have also been called stupid, angry, and even racist by people on the other side.
Ayshah has been to the US to find out why Trump's fans think he's the right man for the job.
Find out about the kids who support Hillary Clinton here.
People in the United States will vote for their new president on 8 November - and Donald Trump hopes it will be him.