The District of Columbia Office of the Chief Medical Examiner reported that U.S. Senator Lindsey Graham (R-South Carolina) suffered an aortic dissection before his death [1].

The preliminary findings provide a medical explanation for the sudden death of a high-ranking member of the U.S. Senate, though a formal death certificate remains pending [1].

According to the Office of the Chief Medical Examiner, preliminary findings show Sen. Lindsey Graham suffered an aortic dissection before his death Saturday [1]. The medical examiner's office released these details following the sudden death of the 71-year-old [2] senator [2].

An aortic dissection occurs when the inner layer of the aorta—the body's largest artery—tears, allowing blood to leak between the layers of the vessel wall. This condition is often sudden and can be fatal if not treated immediately.

Officials in Washington, D.C., where the medical examiner's office is located, have not yet issued the final death certificate [1]. The report follows the announcement that Graham died on Saturday [1].

Representatives for the senator have acknowledged the preliminary cause of death as the medical process continues [3]. The office of the chief medical examiner said the findings are preliminary and subject to change upon the completion of the final autopsy report [1].

Senator Lindsey Graham suffered an aortic dissection before his death Saturday.

The release of preliminary findings by the D.C. medical examiner provides an immediate cause of death for a prominent federal official, reducing speculation regarding the sudden nature of the event. Because the death certificate is still pending, the official record remains open, but the identification of an aortic dissection suggests a catastrophic cardiovascular event rather than a prolonged illness.