It may soon be the end of an era, as the budget proposal by President Donald Trump would call for the elimination of funding for the International Space Station by 2025. However, he may face a fight from his own party for such a proposal.

The move would be part of a push toward more manned missions to the moon and beyond, with money saved from the ISS theoretically put toward those missions. The ISS has served as a vital laboratory in space for decades, but its future is now in jeopardy. NASA will not comment on the proposal until it is formally released.

“NASA and the International Space Station partnership is committed to full scientific and technical research on the orbiting laboratory, as it is the foundation on which we will extend human presence deeper into space,” a NASA spokesperson said in a statement to The Verge. “We will not comment on any leaked or pre-decisional documents prior to the release of the President’s FY19 budget, which is scheduled for February 12.”

It is certainly not set in stone, as Florida GOP Sen. Bill Nelson warned on Twitter that the administration would have a fight on its hands if it put forward such a proposal. Florida is home to Cape Canaveral, where many launches that supply the ISS take place.