Bush and Bill Clinton ... Only two presidents were younger than Clinton when they were sworn in, Theodore Roosevelt was 42 years of age and John F. Kennedy was 43. Obama, 63, was born on Aug ...

President-elect Donald Trump and former Presidents Bill Clinton and George W. Bush share a birth year, while former President Barack Obama lays claim to the youngest president currently alive.

Donald Trump will make history when he is sworn into office today as the oldest President to take the oath of office.