Work requirements for have emerged as a final sticking point in negotiations over the looming , even as President said a deal is 鈥渧ery close.鈥�

Biden鈥檚 optimism, in comments to reporters as he left the White House on Friday evening, came as the deadline for a potentially catastrophic default was and seemed likely to drag between the White House and Republicans over into another frustrating week.

House negotiators departed the Capitol after 2 a.m. Saturday without a deal. They were expected to return hours later in hopes of reaching agreement with the White House over the holiday weekend.

Both sides have suggested one of the main holdups is a GOP effort to expand existing work requirements for recipients of food stamps and other federal aid programs, a longtime Republican goal that Democrats have strenuously opposed.

Even as they came closer to a framework on spending, each side seemed dug in on the work requirements. White House spokesman Andrew Bates called the GOP proposals 鈥渃ruel and senseless鈥� and said Biden and Democrats would stand against them.

Louisiana Rep. Garret Graves, one of House Speaker Kevin McCarthy鈥檚 , was blunt when asked if Republicans might relent on the issue: 鈥淗ell no, not a chance.鈥�

The later 鈥� 鈥� laid out in a letter from Treasury Secretary Janet Yellen, set the risk of a devastating default four days beyond an earlier estimate. Still, Americans and the world uneasily watched the negotiating brinkmanship that could throw the U.S. economy into chaos and sap world confidence in the nation鈥檚 leadership.

Yet Biden was upbeat as he departed for Camp David: 鈥淚t鈥檚 very close, and I鈥檓 optimistic.鈥�

Failure to lift the borrowing limit, now $31 trillion, to pay the nation鈥檚 incurred bills, would send shockwaves through the U.S. and global economy. In a blunt warning, Yellen said failure to act by the new date would 鈥渃ause severe hardship to American families, harm our global leadership position and raise questions about our ability to defend our national security interests.鈥�

Anxious retirees and others were already making contingency plans for missed checks, with the next due next week.

Biden and McCarthy, R-Calif., have seemed to be narrowing on a two-year budget-slashing deal that would also extend the debt limit into 2025 past the next presidential election. The contours of the deal have been taking shape to cut spending for 2024 and impose a 1% cap on spending growth for 2025.

But talks over the proposed work requirements for recipients of Medicaid, food stamps and other aid programs seemed at a standstill Friday afternoon.

Biden has said the work requirements for Medicaid would be a nonstarter. But he initially seemed potentially open to negotiating minor changes on food stamps, now known as the Supplemental Nutrition Assistance Program, or SNAP.

The Republican proposal would save $11 billion over 10 years by raising the maximum age for existing standards that require able-bodied adults who do not live with dependents to work or attend training programs. While current law applies those standards to recipients under the age of 50, the Republican plan would raise the age to include adults 55 and under. It would also decrease the number of exemptions that states can grant to some recipients subject to those requirements.

Biden鈥檚 position on the SNAP work requirements appeared to have hardened by Friday, when spokesman Bates said House Republicans are threatening to trigger an unprecedented recession 鈥渦nless they can take food out of the mouths of hungry Americans.鈥�

Any deal would need to be a political compromise, with support from both Democrats and Republicans to pass the divided Congress. Many of the hard-right Trump-aligned Republicans in Congress have long been skeptical of Treasury鈥檚 projections, and they are pressing McCarthy to hold out.

House Republicans have now pushed the issue to the brink, displaying risky political bravado in leaving town for the Memorial Day holiday. Lawmakers are not expected to return to work before Tuesday, at the earliest, and McCarthy has promised lawmakers he will abide by the rule to post any bill for 72 hours before voting.

Watchful House Democrats are also pressing Biden to reject any new work requirements. The top three House Democratic leaders led by Rep. Hakeem Jeffries of New York spoke late Thursday with the White House.

The Democratic-held Senate has stayed out of the negotiations, leaving the talks to Biden and McCarthy. But Senate Majority Leader Chuck Schumer of New York has pledged to move quickly to send a compromise package to Biden鈥檚 desk.

Weeks of negotiations between Republicans and the White House have failed to produce a deal in part because the Biden administration resisted for months on negotiating with McCarthy over the debt limit, arguing that the country鈥檚 full faith and credit should not be used as leverage to extract other partisan priorities.

But House Republicans united behind to cut spending, narrowly passing in late April that would raise the debt ceiling in exchange for the spending reductions.

鈥淲e have to spend less than we spent last year. That is the starting point,鈥� McCarthy has insisted.

One idea is to set the topline budget numbers but then add a 鈥渟nap-back鈥� provision to enforce cuts if Congress is unable during its annual appropriations process to meet the new goals.

Lawmakers are all but certain to claw back some $30 billion in now that the pandemic emergency has officially been .

Mary Clare Jalonick, Lisa Mascaro, Stephen Groves And Fatima Hussein, The Associated Press

Like us on and follow us on .