Under Obama, Congress has cut the deficit every year, for a total of 2/3rds reduction since 2009. One conclusion, other than that Trump voters will find their incomes and benefits moderately to severely cut under the current Congress and Trump administration, and that the deficits will balloon.

Along with inflation, national debt reduction would require near elimination of deficits year after year. To eliminate deficits we have to increase revenue or decrease spending, or both. This has never happened under any modern Republican administration, and with big tax cuts, it won't happen under Trump.  Look for deficits and the debt to explode.  And remember, both Trump and his OMB pick Rick Mulvaney think it's POK to default on the US debt, which the Constitution forbids.