Caroline Kennedy, RFK Jr.’s cousin, wrote a letter to lawmakers warning she believed he is “unqualified” for the role.

She called him a “predator,” shared disturbing details of his alleged behavior with animals and accused him of being “addicted to attention and power.”

“The American health care system, for all its flaws, is the envy of the world. Its doctors and nurses, researchers, scientists, and caregivers are the most dedicated people I know. Every day, they give their lives to heal and save others. They deserve better than Bobby Kennedy – and so do the rest of us. I urge the Senate to reject his nomination,” she concluded.

Read more about her letter to senators here.