Sanders, the senior minority party member on the committee, pressed Kennedy to concede that health care was a human right, as his father, Robert F. Kennedy, and his uncles, John F. Kennedy and Edward Kennedy, had done. Kennedy again did not give a definitive answer.

Robert F. Kennedy Jr. explains why his voice sounds raspy and strained, causing difficulty when he speaks. Here's more about spasmodic dyshphonia

This week many Americans have taken note of the beleaguered Kennedy's distinct voice. It's said to be caused by a neurological condition, experts explain.