A group of Republican and Democrat lawmakers announced Wednesday that they had struck a deal with President Joe Biden on a potential infrastructure package.

The senators will meet with Biden Thursday, although they said that his advisers confirmed that they had signed off on the compromise. 

The plan would reportedly include $579 billion in new spending, including several ways to offset the cost of the infrastructure package.

White House press secretary Jen Psaki said in a statement Wednesday:

White House senior staff had two productive meetings today with the bipartisan group of Senators who have been negotiating about infrastructure. The group made progress towards an outline of a potential agreement, and the President has invited the group to come to the White House tomorrow to discuss this in-person.

 Although the plan has the backing of a bipartisan group of senators and the White House, it remains unclear to what degree Democrats and Republicans support the package.