Does anybody actually believe that any President and Congress can actually do that without bankrupting America?
Bankrupting? Yes. We can handle the debts Trump's policies are likely to generate.
That said, it's going to put us in a much worse position, for what is likely to be little gain. In particular, Trump's proposed tax cuts and spending won't do anything to put Social Security and Medicare in a better position. In fact, killing the ACA will deteriorate Medicare's fiscal condition.
Trump's policies will do little to help the current economy. Tax cuts are currently slotted mostly for corporations and the wealthy, which does little or nothing for the economy. The wealthy already save over half their income, so giving them more post-tax income doesn't get spent, so it doesn't stimulate the economy.
After years of record profitability, we've already seen what modern corporations do when their profits go up -- they sit on the cash, buy back stock, and do almost anything other than cut prices. Cutting corporate taxes also won't stop the race to the bottom; corporations will still move their HQ abroad if they think it will reduce their tax liabilities.
Trump will also boost the debt by defense spending. He hasn't actually said how or why he will increase spending, or how that will further protect the US. What we do know is that it's a poor economic stimulus.
Infrastructure spending is a good stimulus... but poorly timed. Long story short: In a downturn, the government borrows heavily at a time when people don't want to lend, and spends the money putting unemployed people to work. When the economy recovers, the government pulls back on the spending, workers go back into the private sector, and the effects of the recession are lessened.
One problem with Trump's infrastructure plan is timing. Whether he cares to admit it or not, we are at full unemployment, and wages are going up, and that's due to private sector employment. If we hire lots of people now to build infrastructure, they will compete with the private sector, which will make those projects more expensive. It will also draw workers away from the private sector, which will increase wages, which in turn will increase everyone's costs, and cause inflation. Another timing issue is that we really should wait until there's a downturn before hiring lots of people -- i.e. we should keep the powder dry.
And again, few of the proposed changes will do anything to reduce the major drivers of the debt today: Social Security, Medicare, Medicaid, defense spending, interest on the debt, or the VA. Those alone are at least 70% of the federal budget. (By the way, you could kill literally every other department, and still not balance the federal budget.)
