Trump will have to buck the trend to stop that chart going exponential! Unlikely....
Amazing how it got that way. That Obama period is really scary in how fast it sped up. Very steep increases.
It clearly is unsustainable, and Trump, successful or not, is a bit of egomaniac. On the positive, he's querying the cost of some military expenditures, eg F35, Air Force One. At the same time, he's building a wall to be paid by US taxpayers via an import tax (possibly). Still, the debt discussion which was so prominent during Obama's administration is now gone. It has been done in the past, though.