Here’s what to know about the vacancy left by the passing of the Senator from South Carolina—and what it means for the Republican Party.

U.S. Senator Lindsey Graham died Saturday after a brief and unexpected illness, his office said in statement posted on social media.

Graham, a prominent Republican senator from South Carolina, was 71.

Lindsey Graham, a prominent Republican senator, has died at the age of 71 from a brief illness.

The South Carolina Republican was running for reelection to his fifth term in the Senate, having begun his tenure in 2003.