Four Republican senators joined Democrats in shooting down an amendment to a massive defense authorization package that would have reinstated troops discharged for refusing to take the COVID-19 vaccine.

The 2023 National Defense Authorization Act (NDAA) passed the Senate 83-11 Thursday night, and along with it a provision overturning the Biden administration’s service-wide vaccine requirement. Republican Senators Mitt Romney of Utah, Susan Collins of Maine, Bill Cassidy of Louisiana and Mike Rounds of South Dakota voted no on a last-minute amendment to the bill re-enlisting thousands of troops separated for refusing the vaccine mandate, collapsing the proposal 54 to 40.

“These were direct orders from commanding officers,” Cassidy said in a statement to the Daily Caller News Foundation, referring to Secretary of Defense Lloyd Austin, who announced the vaccine mandate. “I voted to end the COVID vaccine mandate in the military, but it is not Congress’s place to intervene in the chain of command and set a precedent for military personnel to ignore direct orders.”