Senate Democrats have dropped the paid family and medical leave proposals from the social spending package after negotiations with moderate Democrats failed to reach a compromise on a pared-down version of the proposals, according to a report.

Democrats decided to drop the proposals on Wednesday despite that they were a key campaign promise of President Biden, according to reporting from Politico. Sen. Kirsten Gillibrand, D-N.Y., one of the senate's leading advocates for the benefits, had tried to reach a last-minute deal with Sen. Joe Manchin, D-W.Va., who has resisted the overall cost of the package.

Sen. Kirsten Gillibrand (AP Photo/Charlie Neibergall)

Sen. Kirsten Gillibrand (AP Photo/Charlie Neibergall)

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But Gillibrand told Fox News Wednesday that reports about the benefits being dropped are "premature," signaling hope that some sort of pared-down version could still be in play.

Manchin has argued that the cost of the proposals is too high when some social programs are already in jeopardy of running low on funds.

"I'm talking to everybody, but I've been very clear: to expand social programs, when you have trust funds that aren't solvent — they're going insolvent — I can't explain that ... It doesn't make sense to me … I just can’t do it," Manchin said Wednesday.

But Gillibrand has said she will not give up on getting the benefits added.

WASHINGTON, DC - OCTOBER 06: Sen. Joe Manchin (D-WV) (Photo by Kevin Dietsch/Getty Images)

WASHINGTON, DC - OCTOBER 06: Sen. Joe Manchin (D-WV) (Photo by Kevin Dietsch/Getty Images) (Kevin Dietsch/Getty Images)

"Until the bill is printed, I will continue working to include paid leave in the Build Back Better plan," the New York lawmaker said.

Biden delivers remarks from the White House

President Joe Biden. (AP Photo/Evan Vucci)  (Evan Vucci)

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"These bills are about competitiveness versus complacency," Biden said of the benefits during a trip to New Jersey Monday. "They're about expanding opportunity, not opportunity denied. They're about leading the world or continuing to let the world pass us by."

Fox News' Jacqui Heinrich contributed to this report.