The U.S. government shutdown has dragged on for 38 days because of a dispute over whether ACA tax credits should be included in a stop-gap funding bill.

Top Senate Democrat Chuck Schumer offered a new plan to Republicans that would allow the U.S. government to reopen after a shutdown that began on Oct. 1.

But Republicans quickly dismissed Schumer’s proposal, which hinges on protecting enhanced Affordable Care Act subsidies for at least one year.

Schumer’s proposal calls for Democrats to agree to pass a so-called clean resolution that would provide short-term funding for government operations.