It's hard to imagine a political solution to this problem. Both parties are playing chicken, each daring the other to fall on their sword for the good of the country, with neither willing to commit political suicide. Republicans don't have the stomach for the (unpopular) spending cuts that would be required to reduce the deficit, and of course they don't want to raise taxes. They reasonably fear that, even if they gutted the core programs to balance the budget, the next Democrat administration (whose election would be essentially guaranteed by massive cuts) would turn around and use the savings to fund new and exciting ways to buy votes. On the flip side, Democrats shriek in horror at the slightest spending cuts and even advocate for massive increases in spending ("Medicare for all" alone would cost another $1.5 Trillion per year) yet they are afraid to acknowledge, let alone levy, the (unpopular) broad-based taxes required to cover the current deficit, let alone pay for new programs.

It is the ultimate tragedy of the commons.