Senate Republicans are advancing a new bipartisan spending package in an effort to end the record-long government shutdown, though its success remains uncertain.

Many Democrats continue to demand an extension of expiring health care subsidies, which is not included in the current proposal.

A test vote on the plan could happen as soon as Friday, forcing Democrats to choose between holding out for a health care deal or voting to reopen the government without one.

While some Democrats are exploring a compromise allowing only a future vote on the subsidies, most remain firm that progress on health care is essential, the AP has reported.

With growing pressure to ease the shutdown’s impact on workers, airports, and food aid, both parties face increasing urgency to reach an agreement.