As are the unfunded parts of obamacare,the premium subsidy program as well as the medicaid expansion. Expected to add trillions. So once again, both parties running up debt.
According to the CBO estimate, this is not true.
https://www.vox.com/cards/obamacare/how-much-does-obamacare-cost-the-government
From the 2012 to 2222 period it is lowering the budget deficit. More importantly, Democrats spent close to a year holding hearings and debates on how to pay for the damn thing. They came up with a mix of cost savings and taxes. The point is, they put a lot more effort and thought into how to pay for the damn thing, than what Republicans did for their tax cuts. The CBO estimated the tax cut would create a deficit and they just shrugged and passed the bill anyway. That's because Republicans care more about passing tax cuts than about lowering the deficit and debt. Every challenge and scenario is an opportunity to cut taxes.