[Angelino97]

He missed possibly the most important reasons.
The interest costs on the Federal Debt.

No, he didn't:

The U.S. is already paying more than $1 trillion per year just to service its debt.

[monkeyshine]

Correct. Trump in his first term wanted to sell 30, 50 and 100 year bonds. He wanted to lock up US debt at fixed rates for a long time. That would have brought some stability.