Republicans have repeatedly sought to undermine, weaken, repeal or limit the Affordable Care Act (ACA) since it was enacted in 2010. Here is how Republicans have undermined the ACA.
Repeal attempts (2010–2017):
Republicans voted more than 60 times in Congress to repeal the ACA outright.
- These votes often failed when Democrats controlled at least one chamber or the presidency.
- The effort culminated in 2017, when Republicans controlled the House, Senate and White House but still failed to fully repeal the law by one Senate vote (John McCain’s).
Effect:
- Created long-term uncertainty for insurers, states and patients
- Eliminating the individual mandate penalty (2017)
- The 2017 Tax Cuts and Jobs Act reduced the ACA’s individual mandate penalty to $0.
- The mandate was designed to keep healthy people in insurance pools
- Weakened insurance risk pools
- Contributed to higher premiums in some markets
- Undermined the law’s financial structure without repealing it
Supporting lawsuits to strike down the ACA:
- Republican attorneys general backed cases (e.g., Texas v. United States) arguing that the ACA was unconstitutional once the mandate penalty was zeroed out.
- The Trump administration refused to defend the law in court.
Effect:
- Created years of legal uncertainty
- Threatened protections for preexisting conditions
- Ultimately failed at the Supreme Court
The Trump administration:
- Slashed ACA navigator funding by ~90%
- Cut enrollment advertising budgets
- Shortened open enrollment periods
Effect:
- Lower enrollment than projected
- Disproportionate impact on:
- First-time enrollees
- Low-income and rural populations
Medicaid expansion opposition:
- Many Republican-led states refused Medicaid expansion for years (some still do).
- This left millions in the “coverage gap” — too poor for subsidies, not eligible for Medicaid.
Effect:
- Higher uninsured rates in those states
- Worse rural hospital finances
- Increased uncompensated care costs
- Promoting alternatives that bypass ACA protections.
These plans can exclude:
- Preexisting conditions
- Essential health benefits
Effect:
- Fragmented insurance markets
- Healthier people exit ACA plans, raising premiums for others
No comprehensive Republican replacement plan has ever passed Congress.
Republicans have materially undermined the Affordable Care Act, through:
- Repeal efforts
- Defunding key components
- Legal challenges