Republican Sen. Lindsey Graham has died at the age of 71. A medical examiner's preliminary findings indicate that the cause of death was an aortic dissection.

His office reported that he died Saturday evening after a brief and sudden illness. This occurred shortly after he returned from a trip to Ukraine. He was scheduled to appear on "Meet the Press" on Sunday.

Further details about Sen. Graham's death are available. His family has expressed appreciation for support during this time.

The circumstances surrounding his death are still being reported, with more information available from the source.