Will Trump Reduce The U.S.'S Debt?

I think he will do this and more, he will probably go past china to.

Trump's policies with regards to reducing the debt do not add up mathematically. Here is how the debt change works:

Yearly governmental funding - yearly governmental spending = yearly debt reduction.

Trump has significantly reduced the former due to the tax reform and his other free market policies, but did not reduce (or even increased) the latter - hence the result is a negative debt reduction, which is equal to debt increase. Countless economists warned about this outcome - but when asked about this on the debates or in multiple interviews, he just brushed off the questions with dismissive remarks, such as, "Different economists have different opinions".

Obama fell into a similar pit 9 years ago: while he did increase the former part, he increased the latter part far more, leading to rapidly growing debt. His calculations on the ACA reform (and several others) were horribly wrong, both in terms of its cost and return. 

I think the last president who managed the debt well was Bill Clinton. Ever since, the president administrations were pushing for much more spending than they could afford, and the debt kept growing unstoppably. At the very least, with Trump it does not grow as fast as it would with Sanders - but probably faster still than with H. Clinton.