The Senate recently voted against a resolution by Democrats to dismantle a pilot program by the Centers for Medicare & Medicaid Services (CMS) that uses artificial intelligence (AI) for reviewing some Medicare treatments. The program, while controversial, aims to reduce waste and fraud in Medicare, according to the Trump administration and CMS.
CMS is committed to crushing fraud, waste and abuse, and the WISeR Model will help root out waste in Original Medicare,
stated Dr. Mehmet Oz, CMS Administrator. He emphasized the program’s role in modernizing Medicare by integrating technology with experienced clinicians.
The decision was split along party lines, with 46 Democrats in favor of ending the program and 50 Republicans voting to sustain it. Four senators did not vote: Republicans Bill Hagerty, Mitch McConnell, Roger Wicker, and Democrat Chris Murphy.
Concerns About AI in Medicare
There is growing unease about AI’s involvement in healthcare, particularly regarding potential delays for seniors on traditional Medicare, who typically avoid pre-approval requirements of Medicare Advantage plans. Should this model expand, many seniors might encounter additional bureaucratic steps before receiving treatments.
Republicans Who Opposed Repeal
The following Republican senators voted against the resolution:
- Alan Armstrong (Oklahoma)
- Jim Banks (Indiana)
- John Barrasso (Wyoming)
- Marsha Blackburn (Tennessee)
- [Continues the list as in original text]
The WISeR model, implemented in January, currently operates in Arizona, New Jersey, Ohio, Oklahoma, Texas, and Washington. It mandates prior authorization for certain services perceived as prone to fraud or unnecessary spending, using AI-assisted reviews performed by private firms.
AI isn’t the danger. But paying an outsider to say no to seniors’ care is,stated Michael Ryan, a finance expert, emphasizing the risk of profit-driven denials.
Democratic Opposition
Democratic leaders like Ron Wyden, Maria Cantwell, Richard Blumenthal, Patty Murray, and Kirsten Gillibrand voiced their concerns about the pilot causing treatment delays for seniors.
President Trump came into office saying that he wouldn’t cut Medicare,
Patty Murray noted, arguing that the WISeR model’s use of AI effectively runs counter to this promise by denying claims.
A report by Maria Cantwell indicated extended authorization times in Washington state, attributing them to the new model.
Legislative Background
The resolution emerged after the Government Accountability Office classified the CMS notifying WISeR as a rule under the Congressional Review Act (CRA), empowering Congress to challenge it. This attempts to balance efficient processing with cautious AI deployment in critical healthcare decisions, as noted by Drew Powers of Powers Financial Group.
AI could amplify biases present in training data,
cautioned Kevin Thompson, emphasizing the potential risks for marginalized groups.
Future Implications
Following the Senate’s decision, the WISeR model continues operations in the designated states. Patty Murray iterated the ongoing struggle saying, This isn’t the end. We’ll keep fighting back.
The current structure raises questions about Medicare’s trajectory: traditional or incrementally integrating pre-authorization akin to Medicare Advantage.

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