The Justice Department now says that President Barack Obama's signature legislative achievement should be wiped out.
Legal experts expect the case to be brought up in front of the Supreme Court, which will be the third time the high court will take up the issue of the ACA. That ruling was met with heavy criticism, including from some Obamacare critics: The ruling attempted to use statements of congressional intent associated with the original passage of the law in order to invalidate the law as it stands now-essentially ignoring congressional changes, which constitute clear signals of intent, that have happened since.
In December, U.S. District Judge Reed O'Connor in Fort Worth, Texas, agreed with the GOP plaintiffs, saying that because the 2017 tax law passed by Congress eliminated the tax penalty for not having health insurance coverage, the rest of the health law is now unconstitutional.
After November's midterm elections, the Democratic-led House of Representatives also joined in.
The legislation is expected to include measures that would grant money to help insurers pay the bills of their most expensive patients, and restore advertising and outreach budgets removed by the Trump administration.
The Trump administration on Monday said the entire Affordable Care Act should be struck down, in a dramatic reversal.
Yet it's an issue Democrats have struggled to stay focused on after taking the House in January and effectively neutering the Republican threat to repeal the 2010 law.
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She later apologized for her "It's all about the Benjamins baby" tweet when talking about the group's financial influence. The second, a resolution, also condemned anti-semitism but focused on Islamaphobia and "other forms of bigotry" as well.
While this is not the immediate end to the Affordable Care Act, it is one step closer to its demise.
If it were successful, the Justice Department's position supporting the judge's ruling would potentially eliminate health care for millions of people and create widespread disruption across the U.S. health care system - from removing no-charge preventive services for older Americans on Medicare to voiding the expansion of Medicaid in most states. This wouldn't fix the nation's health care system so much as return it to the pre-Obamacare status quo, which was broken in different ways. O'Connor ruled that Congress's elimination of penalties for not buying health insurance rendered the law unconstitutional.
Several states, including California, New York, Illinois, Connecticut and Virginia have intervened in the suit to keep Obamacare intact.
According to POLITICO, Justice Department spokesperson Kerri Kupec said the department "has determined that the district court's comprehensive opinion came to the correct conclusion and will support it on appeal".
They added that the administration "is not urging that any portion of the district court's judgment be reversed".
In December, U.S. District Judge Reed O'Connor ruled that after Trump signed a $1.5 trillion tax cut package passed by Congress past year that eliminated the penalties, the individual mandate could no longer be considered constitutional.
Neither Medicare for all nor Democrats' latest health care package have chances of passing the Republican-controlled Senate.