The House of Representatives is tentatively scheduled to vote between 5:45 p.m. and 6:15 p.m EDT on Thursday on a proposal to cut the deficit and raise the debt limit by $900 billion, a congressional aide said.

The proposal by House Speaker John Boehner, the top Republican in Congress, is seen facing a close vote and its chances appear too close to call despite his fierce lobbying efforts over the past few days.

Aides said the scheduled vote time was subject to change.