I thought Rutherford B. Hayes was the 19th president of the United States.
Apparently it's complicated.
According to the “theory,” the adoption of the 14th amendment somehow invalidated the US government. Thus, the “Second Coming of Trump” (on the date of inauguration as originally set out in the Constitution) will inaugurate the return of our true federal government under out true Constitution, and President Trump will pick up as the first legitimate president after US Grant, thus he will be the 19th president.
Don’t ask for details. You would assuredly lose IQ points if they were related to you.