According to a preliminary finding from the medical examiner, Lindsey Graham died from an aortic rupture caused by hardened arteries.

Graham's death sparks questions on cardiac arrest that is caused by an electrical malfunction in the heart that disrupts its pumping action. The heart then stops beating.

The South Carolina senator’s office said the 71-year-old died after a “brief and sudden illness.”

Firebrand US Senator Lindsey Graham has died at the age of 71 after a 'brief and sudden illness.'

South Carolina Senator and US President Donald Trump's close aide passed away on Saturday at the age of 71.

The Republican senator from South Carolina died of a sudden illness.

Sen. Lindsey Graham (R-SC) likely died of a heart attack. The senator had a family his tory, with his father dying from a heart attack at 68.