Updated 3:10 p.m. | President Barack Obama and Vice President Joseph R. Biden Jr. plan to meet with the top four congressional leaders in a White House meeting Monday, according to a White House official.

The meeting, originally scheduled for 3 p.m., was indefinitely postponed, while Senate leaders continue haggling over the outlines of a potential deal to reopen the government and raise the debt ceiling.

Obama has been huddling with various groups of lawmakers as Thursday’s debt limit deadline approaches. The rescheduled meeting would be the second time in the 14-day shutdown that Obama will meet with Senate Majority Leader Harry Reid, D-Nev., Senate Minority Leader Mitch McConnell, R-Ky., Speaker John A. Boehner, R-Ohio, and House Minority Leader Nancy Pelosi, D-Calif.

Negotiations between Reid and McConnell — viewed by many as the best chance for a deal to avert default and reopen the government. The Senate had been in session Sunday, and Reid and McConnell spoke briefly over the phone.

From a White House official, about the afternoon meeting: “With only a few days until the government runs out of borrowing authority, the President will make clear the need for Congress to act to pay our bills, and reopen the government. The President will also reiterate our principles to the leaders: we will not pay a ransom for Congress reopening the government and raising the debt limit. The President continues to urge Congress to pass a bill that raises the debt ceiling and lends the certainty our businesses and the economy needs.”