By Manu Raju, Jeff Zeleny, CNN(CNN) — The White House and Senate leaders are moving closer to a deal to avert a government shutdown but are seeking to resolve final sticking points in eleventh-hour negotiations ahead of Friday’s deadline, according to several sources familiar with the talks. The two sides are still trying to sort out the timeline for extending funding for DHS, the sources said, underscoring that a deal has not yet been reached. CNN has reached out to the White House for comment. As Democrats and Republicans negotiated Wednesday on the Hill, the risk of a shutdown appeared to skyrocket earlier in the day. Behind the scenes, several of Schumer’s Democrats rebuffed efforts by the White House to privately discuss off-ramps for a shutdown, insisting that Republicans must come to the table instead of trying to peel off centrist Democrats like the last shutdown.