The American Cancer Society Cancer Action Network (ACS CAN) is launching a new print and digital ad campaign today emphasizing the dangerous impact that proposed changes to Medicare Part D’s six protected classes could have on patients’ access to affordable drug therapies.

Today the U.S. House of Representatives voted to petition to intervene in a case before the U.S. Court of Appeals for the Fifth Circuit that could determine the future of the Affordable Care Act (ACA).

The ruling by a U.S. District Court judge in Texas that the Affordable Care Act is invalid because Congress eliminated the individual mandate penalty in last year’s tax reform bill. The ruling, which could eliminate critical protections for people with pre-existing conditions and minimum insurance standards known as essential health benefits, is expected to be appealed.