US Republican Senator Lindsey Graham, a key ally of Donald Trump, has died at the age of 71 following a sudden illness, his office announced.

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

The South Carolina senator’s office said the 71-year-old died 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.