The Senate will vote at noon on Tuesday on a historic measure pairing an increase in the government's borrowing limit with promises of more than $2 trillion of budget cuts over the next decade.
Passage would send the measure to the White House for President Barack Obama's signature just hours before the deadline for a potential first-ever government default.
The House passed the bill by a 269-161 vote Monday night. It links an increase of at least $2.1 trillion in the government's borrowing limit with the promise of an equal level of spending cuts over the coming decade.
It will take 60 votes to pass the measure Tuesday under an agreement between Senate leaders.