I've said this before but Biden's best debt ceiling play is to take the situation as an opportunity.

If the GOP is leaving him with no choice but to illegally stop some government payments, he has no choice but to prioritize some over others. Figure out which payments being withheld will cause the most acute pain to GOP constituencies and exclusively start with those.

They will probably sue the Biden administration and probably win in the rigged courts but feels like a "there's no method for enforcing this besides impeaching Biden" situation to me! If they threaten to jail agency heads or something like that for defying court orders, Biden can promise to pardon them.
In general the idea in the Biden administration's head should be to make breaching the debt ceiling feel like grabbing an electrified fence for GOP lawmakers. Cause as much instant, acute pain as possible to them is the best way to make them let go.

I do not think the Biden administration would ever do something this crazy but if I were President I would 100% do stuff like "halt social security payments but only to census tracts that voted 80%+ for Trump."

That would be wildly illegal but its all illegal! What difference does it make to try to follow some arcane formula for payment prioritization?

@mtsw I at least like the idea that it highlights the Catch-22 nature of the issue. Either break the law by not giving the required payments, or break it by borrowing money you're not authorized to borrow. Stupid "choice".
@arbitrary_arbys @mtsw he should have said that up front: Congress is forcing me to break the law. I choose to issue more debt.
@robprather @arbitrary_arbys @mtsw Using the debt ceiling as an opportunity to stick it to GOP voters specifically is a solid cool zone strategy, but there is a good case to be made that Biden is on sound legal footing to simiply ignore the debt ceiling for the reasons stated immediately above, and there are some legal scholars who agree https://scholarship.law.cornell.edu/facpub/591/
How to Choose the Least Unconstitutional Option: Lessons for the President (and Others) from the Debt Ceiling Standoff

The federal statute known as the “debt ceiling” limits total borrowing by the United States. Congress has repeatedly raised the ceiling to authorize necessary borrowing, but a political standoff in 2011 nearly made it impossible to borrow funds to meet obligations that Congress had affirmed earlier that very year. Some commentators urged President Obama to ignore the debt ceiling, while others responded that such borrowing would violate the separation of powers and therefore that the president should refuse to spend appropriated funds. This Article analyzes the choice the president nearly faced in summer 2011, and which he or a successor may yet face, as a “trilemma” offering three unconstitutional options: ignore the debt ceiling and unilaterally issue new bonds, thus usurping Congress’s borrowing power; unilaterally raise taxes, thus usurping Congress’s taxing power; or unilaterally cut spending, thus usurping Congress’s spending power. We argue that the president should choose the “least unconstitutional” course — here, ignoring the debt ceiling. We argue further, though more tentatively, that if the bond markets would render such debt inadequate to close the gap, the president should unilaterally increase taxes rather than cut spending. We then use the debt ceiling impasse to develop general criteria for political actors to choose among unconstitutional options. We emphasize three principles derived from a famous speech by President Lincoln: 1) minimize the unconstitutional assumption of power; 2) minimize sub-constitutional harm; and 3) preserve, to the extent possible, the ability of other actors to undo or remedy constitutional violations.

Scholarship@Cornell Law: A Digital Repository