Democratic leaders on Tuesday rejected a short-term spending bill unveiled by House Republicans to avert a partial government shutdown, saying they will not back a measure that fails to protect millions of Americans from sharp increases in health insurance costs.

The proposal, released by House leadership, would fund federal agencies at current levels through Nov. 21 and is billed by Republicans as a "clean" continuing resolution without partisan policy riders. Speaker Mike Johnson said the measure "will be a clean, short-term continuing resolution, end of story," and urged Democrats not to force a shutdown. House Republicans included limited exceptions to current funding levels, including an additional $88 million for security for lawmakers, Supreme Court justices and executive branch officials.

Senate Democratic Leader Chuck Schumer and House Democratic Leader Hakeem Jeffries issued a joint statement after the bill’s release, saying Republicans have "refused to work with Democrats" and are "steering our country toward a shutdown." The two leaders said the measure "fails to meet the needs of the American people and does nothing to stop the looming healthcare crisis," pointing to the imminent expiration of enhanced Affordable Care Act subsidies that have kept premiums lower for many Americans.

Any continuing resolution must clear procedural hurdles in the Senate, where it would need support from at least seven Democrats to advance. Senate Majority Whip John Thune said he preferred the Senate consider the bill this week and noted that many Democrats previously voted for similar short-term funding measures, asking whether a shutdown threat would come from Schumer. House leaders signaled they expect a vote on the measure by Friday.

Democrats have pressed for negotiations and for the inclusion of protections against double-digit premium hikes for consumers who buy coverage on Marketplace exchanges. Those enhanced tax credits, originally expanded during the COVID-19 response, are set to lapse, and insurers in nearly every state have sent notices to customers indicating proposed premium increases next year, in some cases as high as 50 percent. The Congressional Budget Office has estimated that the number of uninsured people would increase by 2.2 million in 2026 and by 3.7 million in 2027 if Congress does not extend the subsidies.

Republicans countered that the short-term measure provides needed time for lawmakers to continue negotiations on spending levels and policy for the fiscal year that begins Oct. 1. In defending a pared-down approach, Johnson said the debate over health insurance tax credits could be addressed in December rather than as part of an urgent stopgap funding measure.

The standoff adds to a history of brinkmanship over federal funding. Lawmakers have used the threat of a shutdown in past disputes, most notably during the 2018-2019 partial government shutdown over border wall funding and a 16-day standoff in 2013 tied to disputes over the Affordable Care Act. This year, Democrats say they face particularly intense pressure from their base to secure an extension of subsidies that they say will prevent large premium increases.

Security concerns factored into Republican adjustments to the continuing resolution. The $88 million bump in security funding comes as lawmakers reported an increasing number of personal threats. Republican leaders said those concerns were heightened by what they described as last week's assassination of conservative activist Charlie Kirk, citing the broader increase in threats against public officials.

With days to go before funding lapses at the end of September, both parties characterized the moment as urgent. Republicans have framed their proposal as a neutral, short-term step to keep the government open while leaders negotiate larger spending agreements. Democrats say they will not support a stopgap that ignores the impending healthcare consequences for millions of Americans and again called on GOP negotiators to meet and work out a bipartisan solution.

If neither side yields, the government could face a partial shutdown when current funding authority expires. Lawmakers on both sides of the Capitol said they were weighing political and policy considerations as they headed into what could be another high-stakes funding fight late this week and into next month.