Heart condition tied to Lindsey Graham's death can strike without warning — what to know

Preliminary findings suggest aortic dissection was the cause of Sen. Lindsey Graham's sudden death. Doctors explain the warning signs and high-risk groups. Preliminary findings suggest aortic dissection was the cause of Sen. Lindsey Graham's sudden death. Doctors explain the warning signs and high-risk groups. Read the full story on Fox News via the link below.