Schumer has been facing mounting criticism from his own party after he said he would vote to advance a Republican stopgap bill rather than face a government shutdown.
Rep. Alexandria Ocasio-Cortez, D-N.Y., is furious at Schumer, saying Democrats felt "outrage" and "betrayal" over his move. In an interview on CNN, Ocasio-Cortez declined to rule out primarying Schumer when he is up for reelection in 2028.
"I think it is a huge slap in the face, and there is a wide sense of betrayal if things proceed as originally planned," Ocasio-Cortez told MSNBC.
Schumer has defended his decision by saying that voting for the continuing resolution was the best of bad options.
"As bad as passing the continuing resolution would be, I believe a government shutdown is far worse," Schumer said.