Democrats' cornerstone climate policy will likely be cut from sweeping economic package

The Clean Electricity Performance Program, the cornerstone climate policy in Democrats' massive social safety net package, will likely be dropped from the final budget deal after pushback from Sen. Joe Manchin of West Virginia, three congressional sources told CNN.

"He is not there on the CEPP period. We've been trying," one Democratic aide with knowledge of the negotiations told CNN. The aide told CNN that Democrats are trying to find ways to restructure the program to fit Manchin's concerns while still reducing greenhouse gas emissions.

"Whatever comes through will not be called the CEPP, but we're strongly hoping and thinking there will be ways to meet what he wants," the aide said, adding, "If there's a deal to be struck in the next few days, I don't think there's anything resembling CEPP in there."