Who was US Senator Lindsey Graham, Trump-ally who died of 'sudden illness'?

Republican US Senator from South Carolina, Lindsey Graham, who died on Saturday following 'sudden illness', was a prominent figure in US politics and a President Donald Trump ally. The 71-year-old, born into a blue-collar family in a small town, was first elected to the Senate in 2002. Graham was a strong backer of Ukraine and deeply vocal about US-Israeli friendship.