May 5 (UPI) -- Senate Republicans have released an immigration enforcement package that includes $1 billion in taxpayer money earmarked for President Donald Trump's massive ballroom project at the White House -- a project the president has widely touted as being fully funded by private donors.

That $1 billion is to be used for security improvements to the 90,000-square-foot space, including "security adjustments and upgrades, including within the perimeter fence of the White House Compound to support enhancements by the United States Secret Service relating to the East Wing ModernizationProject, including above-ground and below-ground security features," the bill says.

Since a shooting at the White House Correspondents' Dinner in late April, Republicans have said the ballroom is needed for presidential security. Trump administration court filings on the plan from early April say the project will be able to withstand drone attacks and include a bomb shelter and underground medical facilities, NBC News reported.

"Congress has rightly recognized the need for these funds," White House spokesperson Davis Ingle said in a prepared statement Tuesday. "Due in part to the recent assassination attempt on President Trump at the White House Correspondents' Dinner, the proposal would provide the United States Secret Service with the resources they need to fully and completely harden the White House complex, in addition to the many other critical missions for the USSS."