Except the CBO said it would add nearly 2 trillion dollars to the debt.
"Treasury Secretary Steven Mnuchin claimed that the tax law would not only pay for itself through higher growth, but would reduce the deficit by a trillion dollars. When asked whether these claims were true, Director Hall was unambiguous: No. As his testimony makes clear, “the economy isn’t likely to grow quickly enough to shrink the budget deficit.”
CBO projected that the tax cut will add $1.9 trillion to deficits over 10 years, even after accounting for any growth effects. We are already seeing this play out. The deficit grew 17 percent last year and is projected to grow another 15 percent this year even as the economy grew faster. The idea that tax cuts for the wealthy and corporations would allow us to grow our way out of debt – one of Republicans’ favorite myths – has proven incorrect once again.
https://budget.house.gov/publications/report/cbo-confirms-gop-tax-law-contributes-darkening-fiscal-future
So no, not "orange man bad". It's things that have been tried before and didn't work then and won't work now.
Neither side really gives a crap about reducing the debt/deficit.