Trump busy tearing up the record book 

First, Trump is the oldest-ever incoming US president. The previous record-holder was Ronald Reagan, who was 69 when he took office in 1981. The youngest incoming commander-in-chief was Theodore Roosevelt, who took office in 1901 at age 42.
The average age on taking office of all 44 former presidents is a sprightly 55.
Second, he is the first billionaire president.
Third, his cabinet is the richest ever. Its billionaire members have a combined net worth of at least $35 billion – more than the annual gross domestic product of Bolivia.
Fourth, he has zero experience in politics.
Fifth, he is the president with the most powerful children.
Furthermore, Trump will likely be the president with fewest – or perhaps none at all – White House pets. He is the most adamantly anti-free-trade leader the US has seen for decades. Meanwhile his wife, Melania, born in Slovenia, is the first non-native-English speaker to take up the position of First Lady.
Vint Chavala