
The Patient Protection and Affordable Care Act, also known as Obamacare, has faced numerous legal challenges since its enactment in 2010. While the US Supreme Court has upheld most of the ACA as constitutional, opponents have continuously sought to modify or repeal parts or all of the law. The House of Representatives has voted numerous times to alter, defund, delay, or repeal Obamacare, with little success. The law remains in place, providing health insurance to millions of Americans, despite ongoing efforts by Republicans to undermine it.
| Characteristics | Values |
|---|---|
| Date of ruling | June 2025 |
| Court | US Supreme Court |
| Ruling | Key provision of Obamacare is constitutional |
| Provision | Appointment of members of the US Preventive Services Task Force (USPSTF) |
| Ruling specifics | The health secretary can remove task force members at will and review their recommendations before they take effect |
| Ruling vote | 6-3 |
| Justices in favour | Brett Kavanaugh, John Roberts, Sonya Sotomayor, Elena Kagan, Amy Coney Barrett, Ketanji Brown Jackson |
| Justices opposed | N/A |
| Beneficiaries of provision | 150 million Americans in 2020 |
| Previous challenges | Four lawsuits heard by the US Supreme Court, resulting in changes to the law |
| Related cases | Hobby Lobby-Conestoga Wood cases |
| Congressional votes against | 100 resolutions considered by the House as of November 2, 2017 |
| Related legislation | Patient Protection and Affordable Care Act |
| Related legislation passage | Passed the Senate 60-39 on December 24, 2009; passed the House 219-212 on March 21, 2010 |
| Related legislation signing | Signed into law by President Barack Obama on March 23, 2010 |
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What You'll Learn

The Supreme Court ruled Obamacare constitutional in 2012
The Affordable Care Act, or Obamacare, was passed on March 21, 2010, and signed into law by President Barack Obama on March 23, 2010. The Act requires most individuals to obtain health insurance and requires most employers to offer it. It also provides tax credits and cost-sharing subsidies to help individuals purchase insurance on the individual market. Insurers are prohibited from denying coverage based on pre-existing conditions and must offer a standard set of benefits.
Almost immediately, opponents mounted constitutional challenges to the ACA, arguing that the individual mandate requiring people to carry health insurance conflicted with the Constitution's Commerce Clause. In 2012, the Supreme Court ruled that the Affordable Care Act was constitutional, shocking the ACA's opponents. Chief Justice John Roberts stated that Congress had the legal power to collect the individual mandate financial penalty as a tax.
However, the legal battles over Obamacare continued, with the House voting numerous times to alter, defund, delay, or repeal parts of the ACA. The Supreme Court heard several more cases related to Obamacare, including the Hobby Lobby-Conestoga Wood cases in 2014, which involved two for-profit companies requesting religious exemptions from the ACA. In 2025, the Supreme Court again ruled on a key provision of Obamacare, affirming the constitutionality of the US Preventive Services Task Force (USPSTF), a panel of health experts who determine preventive health services that private insurance companies must cover without cost for patients.
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Chief Justice John G. Roberts Jr. cast the deciding vote
The individual mandate, a key provision of Obamacare, requires most individuals to obtain health insurance or face financial penalties. Chief Justice Roberts' vote was pivotal in the Court's ruling that Congress had the legal authority to impose this mandate as a tax. This decision shocked opponents of the ACA and marked a turning point in the law's contentious history.
The Affordable Care Act, or Obamacare, was passed in 2010 under the administration of President Barack Obama. The law aimed to expand access to healthcare by requiring most individuals to obtain health insurance and most employers to offer it. It provided tax credits, subsidies, and an expansion of Medicaid eligibility. However, it faced immediate and fierce opposition from Republicans, who argued that it was unconstitutional and imposed burdens on individuals and businesses.
Despite the Supreme Court's ruling in 2012, challenges to Obamacare continued. The House of Representatives, for instance, voted numerous times to alter, defund, delay, or repeal portions of the law. In 2017, the GOP-led House even shut down the federal government over their opposition to the ACA. Efforts to dismantle or weaken the law extended beyond legislative actions, with President Donald Trump and his administration enacting policies that destabilised America's public health bureaucracy and reduced access to healthcare.
The enduring controversies surrounding Obamacare reflect deep partisan divisions and ongoing struggles to ensure healthcare access for Americans. Chief Justice John G. Roberts Jr.'s vote in 2012 represented a pivotal moment in this ongoing saga, shaping the legal foundation for a landmark healthcare law and influencing subsequent political and legal battles.
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The individual mandate was deemed constitutional
The Affordable Care Act, or Obamacare, has faced several legal challenges since its enactment in 2010. One of the most contentious aspects of the law is the individual mandate, which requires most individuals to obtain health insurance or face a financial penalty. This provision has been challenged on constitutional grounds, with some arguing that it conflicts with the Constitution's Commerce Clause.
However, in a 2025 ruling, the US Supreme Court deemed the individual mandate constitutional. The Court upheld that a key provision of Obamacare, formally known as the Affordable Care Act, is constitutional. The ruling affirmed the validity of the US Preventive Services Task Force (USPSTF), a committee of volunteer health experts who decide on preventive health services that private insurance companies must cover at no cost to patients.
The Supreme Court's decision addressed the appointment process of the USPSTF, ruling that the health secretary could remove and appoint members at will. This power is not absolute, as the secretary must provide a convincing reason for deviating from the panel's decisions if faced with a lawsuit. The Court's opinion, written by Justice Brett Kavanaugh and joined by five other justices, held that the individual mandate financial penalty could be collected as a tax, payable on annual income tax forms.
The Supreme Court's ruling shocked opponents of the ACA and confused several major news outlets, sparking new legal challenges and political debates. Despite the law's survival of constitutional challenges, Republicans have continued to introduce legislation to modify or repeal parts or all of the Affordable Care Act. As of November 2, 2017, the House of Representatives had considered 100 resolutions to repeal, deauthorize, defund, or otherwise alter the law, demonstrating the ongoing political divide surrounding Obamacare.
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The ACA was challenged on its constitutionality in 2012
The Affordable Care Act (ACA), also known as Obamacare, has faced numerous legal challenges since its passage. One of the significant challenges to its constitutionality occurred in 2012, when 26 states initially challenged the ACA in lower courts, arguing that the individual mandate to purchase insurance exceeded the authority of Congress to regulate interstate commerce. This challenge led to the Supreme Court case National Federation of Independent Business v. Sebelius.
On June 28, 2012, the U.S. Supreme Court issued its ruling, upholding key provisions of the ACA. The Court declared that the "penalty" for not purchasing insurance was constitutional as a valid exercise of Congressional power to tax. However, the Court also limited the expansion of Medicaid under the ACA, stating that the government could not penalize states that chose not to expand Medicaid. This ruling was significant as it affirmed the constitutionality of the ACA while also recognizing certain limitations on its implementation.
The Supreme Court's decision in 2012 was not the end of the legal challenges to the ACA. Several subsequent lawsuits have been filed, and the Supreme Court has ruled on the ACA's constitutionality multiple times since then. For example, in 2025, the Supreme Court upheld the constitutionality of a key provision of the ACA, affirming the role of a healthcare committee in determining preventive health services covered by private insurance companies.
The ACA continues to be a contentious issue, with some lawmakers and organizations repeatedly attempting to repeal or undermine it. Despite these challenges, the ACA has provided healthcare access to millions of Americans and remains a crucial piece of legislation shaping the U.S. healthcare system.
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The House voted to repeal Obamacare in 2016
On January 20, 2017, Donald Trump was sworn in as President of the United States. Trump and many Republicans had vowed to repeal and replace Obamacare. On his first day in office, Trump signed an executive order that would "ease the burden of Obamacare as we transition from repeal and replace", according to then White House Press Secretary Sean Spicer.
On March 6, 2017, House Republicans announced their replacement for the ACA, the American Health Care Act. However, the bill was withdrawn on March 24, 2017, after it became clear that it would not garner enough votes to pass.
The House had previously voted to repeal Obamacare in 2016. On February 2, 2016, the House voted 241–186 in favour of repealing Obamacare, marking the 63rd attempt to repeal the Affordable Care Act. The Restoring Americans' Healthcare Freedom Reconciliation Act of 2015 was passed by Republicans in the Senate and House in 2016.
On January 6, 2016, the House passed a healthcare reconciliation bill, which was vetoed by President Obama on January 8, 2016. This was the sixth veto of his presidency.
Since the ACA was passed in 2010, Congress has been deeply divided over the act, with lawmakers repeatedly debating its implementation and considering bills to repeal, defund, delay, or otherwise amend the law.
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Frequently asked questions
Obamacare is the commonly used name for the Patient Protection and Affordable Care Act (ACA), which was signed into law by President Barack Obama on March 23, 2010. The law requires most individuals to obtain health insurance and requires most employers to offer it.
The US Supreme Court ruled that a key provision of Obamacare was constitutional. The ruling affirmed the constitutionality of the US Preventive Services Task Force (USPSTF), a panel of 16 volunteer health experts who determine which preventive health services private insurance companies must cover without cost for patients. The court also held that the health secretary could remove members of the task force at will and review the task force's recommendations before they take effect.
Republicans in Congress have repeatedly tried to repeal, defund, or otherwise alter Obamacare. As of November 2, 2017, the House of Representatives had considered 100 resolutions to that effect. On January 6, 2016, the House voted in favor of a bill to repeal parts of Obamacare and end federal funding for Planned Parenthood. Republicans have also let enhanced subsidies for Americans who buy health insurance through Obamacare expire, making health insurance more expensive.









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