Government shutdown looms as Trump administration and Congress remain deadlocked, potentially affecting federal workers, national parks and essential services nationwide.

Democrats say they won’t back a GOP bill to extend government funding and prevent a shutdown unless Republicans negotiate with them over health care.

During a shutdown, recreational facilities funded by the federal government would be forced to close, leaving travelers and tourists unable to visit national park facilities or the Smithsonian museums in Washington. The National Park Service estimated that a 2013 government shutdown led to a $500 million loss in visitor spending nationwide.

Georgia also anticipates receiving billions of dollars in federal funding and grants. If a shutdown drags on, grant funding for education, transportation, agriculture and disaster relief projects could begin to dry up.

If the government undergoes a partial shutdown on Oct. 1, essential federal services will continue but others will be limited or stopped.

The threat of a government shutdown has become a recurring event in Washington, though most of the time lawmakers and the president are able to head it off. This time, however, prospects for a last-minute compromise look rather bleak.

If Congress doesn't reach a deal by Wednesday to keep the U.S. government funded, Long Island could face impacts more severe than in previous shutdowns, including layoffs among its 31,000 resident federal workers.