They cou;ld just pass the CR, which doesn't have any funding for additional border security, and includes a cut in defense spending.
link?
CR, continuing resolution, It basically says they will continue the last budget passed
In the United States, a
continuing resolution (often abbreviated to CR) is a type of
appropriations legislation. An appropriations bill is a bill that appropriates (gives to, sets aside for) money to specific federal government departments, agencies, and programs. The money provides funding for operations, personnel, equipment, and activities
A continuing resolution continues the pre-existing appropriations at the same levels as the previous fiscal year
Continuing Appropriations Resolution, 2017 (H.R.5235) - a continuing resolution that would fund the federal government of the United States through December 9, 2016 at 0.496% below the operating rate of the FY 2016 enacted appropriation.