Sheldon Whitehouse actually said...

As many people in the audience know, Senator Collins has an abiding concern for this issue.

One is the Medicare payment rule that forbids Medicare patients to receive hospice care and curative care at the same time.

Senator Whitehouse, as he mentioned, is addressing many of these issues with his Removing Barriers to Patient-Centered Care Act of 2016.

Just one additional point--presumably, these rules were all put in place with a good intention.