Question: Who was the oldest president when he took office?
Disambiguated questions and answers: question: Who was the oldest president when he took office from United States?
Who was the oldest president when he took office from Philippines?
Who was the oldest president when he took office from India?
answer: Donald Trump
Donald John Trump
"The Donald"
Emilio Aguinaldo y Famy
Emilio Aguinaldo
"El Caudillo"
"Ka Miong"
"Magdalo"
"Hermano Colon"
"Heneral Miong"
"Kapitan Miong"
Kocheril Raman Narayanan
K. R. Narayanan
Natural Questions answer: Donald Trump (from the Wikipedia article "List of Presidents of the United States by age")