The American Hospital Association is opposing the GOP’s last-ditch ObamaCare repeal bill, saying the legislation puts the health coverage of 10 million people at risk.

“This proposal would erode key protections for patients and consumers and does nothing to stabilize the insurance market now or in the long term,” Rick Pollack, the group's president and CEO, said in a statement Tuesday.

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“In addition, the block grant to provide support for the expansion population expires in 2026, thereby eliminating coverage for millions of Americans.”

Sens. Bill Cassidy William (Bill) Morgan CassidyCoushatta tribe begins long road to recovery after Hurricane Laura Senators offer disaster tax relief bill Bottom line MORE (R-La.) and Lindsey Graham Lindsey Olin GrahamMomentum growing among Republicans for Supreme Court vote before Election Day Video of Lindsey Graham arguing against nominating a Supreme Court justice in an election year goes viral Warning signs flash for Lindsey Graham in South Carolina MORE (R-S.C.) have unveiled legislation that would end funding for insurer subsidies, tax credits and Medicaid expansion, and it would convert those dollars into block grants for states. It would also defund Planned Parenthood for a year and repeal the individual and employer insurance mandates.

The bill has gained momentum in recent days with Republicans facing a Sept. 30 deadline to pass ObamaCare repeal through a fast-track process that would allow them to avoid a Democratic filibuster in the Senate.

The American Hospital Association fiercely opposed both the House and the Senate’s previous ObamaCare repeal bills. Other groups — such as the American Medical Association and America’s Essential Hospitals — have come out in opposition to the newest bill as well.

Pollack on Tuesday urged senators to work together on fixes to the health care system.

But Sen. Lamar Alexander Andrew (Lamar) Lamar AlexanderToobin: McConnell engaging in 'greatest act of hypocrisy in American political history' with Ginsburg replacement vote Chamber of Commerce endorses McSally for reelection Trump health officials grilled over reports of politics in COVID-19 response MORE, chairman of the Senate Health Committee, is downplaying the Senate’s best chance at a bipartisan deal in the near future — an effort he is working on with the panel’s top Democrat, Sen. Patty Murray Patricia (Patty) Lynn MurrayTrump health officials grilled over reports of politics in COVID-19 response CDC director pushes back on Caputo claim of 'resistance unit' at agency The Hill's Morning Report - Sponsored by The Air Line Pilots Association - Pence lauds Harris as 'experienced debater'; Trump, Biden diverge over debate prep MORE (Wash.).

Alexander had hoped for a deal by early this week, but pointed to the re-emergence of partisan policies as a new barrier to a deal, including the renewed Republican repeal effort and a bill from Sen. Bernie Sanders Bernie SandersNYT editorial board remembers Ginsburg: She 'will forever have two legacies' Two GOP governors urge Republicans to hold off on Supreme Court nominee Sanders knocks McConnell: He's going against Ginsburg's 'dying wishes' MORE (I-Vt.) that would institute a single-payer health care system.

“But since Sen. Sanders and 15 Democrats renewed their push for ‘Medicare for all,’ Republicans began a new effort at repeal and replace. It obviously makes achieving a bipartisan consensus more difficult,” Alexander told reporters Tuesday.

The Association of American Medical Colleges also panned the bill, sending a letter to all senators urging them to oppose the measure and work in a bipartisan fashion on any health care changes.

"During the long debate regarding health care reform, the nation’s medical schools and teaching hospitals have continually advocated for a number of key principles as fundamental cornerstones of any successful health care system," President and CEO Darrell G. Kirch wrote.

"These principles include offering high-quality, affordable health insurance to all; preserving and fortifying the safety net through Medicaid and other policies; and encouraging innovation in the delivery system, among others," he said.

He added that Cassidy-Graham doesn't meet these principles.

This story was updated at 4:49 p.m.