RFK Jr.’s voice issue is generally described as spasmodic dysphonia , a neurological voice disorder that causes involuntary tightening or spasms in the muscles of the voice box, making speech sound strained, shaky, or raspy.

What it sounds like

  • A tight or strangled voice quality is common.
  • It can come and go, and some people notice the voice is worse in certain speaking situations.

What it is

  • Spasmodic dysphonia affects the larynx and the muscle control needed for normal speech.
  • It is considered a neurological disorder rather than a simple throat infection or cold.

Public discussion

  • Online discussion often focuses on why his voice sounds this way, and the most repeated explanation is this diagnosed voice disorder.
  • Articles in 2024 and 2025 continue to describe it the same way, so this is not just a temporary viral rumor.

Short answer

If you mean “what is wrong with his voice,” the best-supported answer is: he has spasmodic dysphonia.

If you want, I can also explain whether it’s treatable or how it differs from a tremor or stutter.