And he has had 5 children. What President has had more?
https://en.wikipedia.org/wiki/List_of_children_of_the_Presidents_of_the_United_States
John Tyler , was the president who had the most children— 15. 8 children with first wife Letitia Tyler and 7 children with 2nd wife, Julia Gardiner”.
In recent times, FDR and Daddy Bush each had six children, although a Bush daughter died when very young. I think a Roosevelt child died young too.