Former United States President Barrack Obama is mourning the sad passing of Bob Graham.

Graham, a three-term senator and former Florida governor who was an early critic of the Iraq war, died aged 87.

Taking to X Obama said Bob Graham was a friend and a consummate public servant.

“As a governor, senator, and legislator, he spent decades fighting for the people of Florida. He was also a champion of the environment, which is why, after the BP oil spill, I asked Bob to co-chair a commission tasked with preventing a disaster of that magnitude from ever happening again”, he said.

Obama said he is thinking of Bob’s family following his death.

“Michelle and I are thinking of Bob’s family today, and everyone who knew and loved him.”

Bob Graham, an American politician, left a remarkable legacy in Florida politics.

Serving as the 38th Governor of Florida from 1979 to 1987, he championed environmental conservation, notably acquiring vast swaths of land for preservation.