it's important to understand each of their reasoning:
Obama added to the national debt in order to jumpstart a stalled economy that was deep, DEEEEEEP in the shitter after Bush just noped'out after letting the housing market explode and adding two wars to the bill. Paying all that shit off, PLUS, what was planned to be damned-near-universal-healthcare but became JUST a huge expansion to most people's health benefits (the ACA).
Those are things Obama's admin paid for and we saw actual, tangible returns on. The economy roared back to life. Medical costs and insurance costs went down.
What benefits did we see from Trump's deficit ballooning tax cuts? hmm lemme look here... ah, the report says JACK SHIT.
Unless you're a billionaire.
So yeah, they both added to the national debt but at least most americans received a functioning economy and a chance for healthcare from Obama. Genuinely, Thanks Obama!