Nearly 20 years ago, I had the privilege of working alongside lawmakers, health experts, and patient advocates to help pass one of the most consequential reforms to Medicare in its history: the Medicare Prescription Drug, Improvement, and Modernization Act of 2003.

That law was built on the simple, but powerful, principle that Medicare should empower seniors to access the best available care, not settle for less. I am proud of that work. Which is why I am deeply concerned about what the Centers for Medicare and Medicaid Services is proposing today.