US President Joe Biden has said he pulled out of the race against Republican Donald Trump because of his concerns about the future of the country.
During his first public address since his departure from the 2024 campaign, Mr Biden invoked previous presidents Thomas Jefferson, George Washington and Abraham Lincoln as he described his love for the office that he will leave in six months, capping a half century in public office.
Speaking in the Oval Office, Mr Biden said: "I revere this office."
He added: "But I love my country more."
Mr Biden, 81, rebuffed weeks of pressure from Democrats to step aside after a disastrous debate performance on 27 June, saying at one point that only the "Lord Almighty" could convince him to go.
He spent days soul-searching and agonising over internal polling that showed he could lose to Mr Trump in November and drag down fellow Democrats with him before stepping aside.
"I have decided the best way forward is to pass the torch to a new generation," he said.
"That is the best way to unite our nation," he added.
During the 11-minute speech, Mr Biden made references to the danger he believes Americans face if Mr Trump wins the 5 November election, without mentioning the former president's name.
He said he was departing from the race to help heal the wounds in the Democratic Party and unite Democrats in the goal of winning.
"Nothing can come in the way of saving our democracy," he said.
"That includes personal ambition," he added.
The president said that the "great thing about America is here, kings and dictators do not rule".
"The people do. History is in your hands. The power is in your hands. The idea of America - lies in your hands," he added.
It was Mr Biden's first extended public remarks since he relented to pressure from fellow Democrats and announced on Sunday via social media that he had decided not to seek re-election on 5 November.
Out of camera sight during the speech were several members of Mr Biden's close-knit family, and senior advisers, seated along the curved Oval Office wall.
They erupted into applause when Mr Biden completed his address.
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Mr Biden is the first incumbent president not to seek re-election since 1968 when Lyndon Johnson, under pressure for his handling of the Vietnam War, abruptly pulled out of the campaign on 31 March.
Mr Biden also joins James K Polk, James Buchanan, Rutherford B Hayes, Calvin Coolidge and Harry Truman as presidents who all decided not to stand for a second elected term.
Mr Biden faced immediate calls to step aside after his rocky performance in the debate against Mr Trump raised questions about his mental acuity.
Since he stepped aside, however, Democrats have rallied around him, paying tribute to his character and his record as president.
"Nowhere else on Earth could a kid with a stutter, from modest beginnings in Scranton, Pennsylvania, and Claymont Delaware, one day sit behind the Resolute Desk in the Oval Office as president of the United States," Mr Biden said.
"But here I am," he added.
A crowd of staff members walked into the White House earlier in the evening to watch the speech together.
Huge cheers and applause came from those who assembled in the White House Rose Garden to hear Mr Biden speak after his address. Ice cream was served.
The White House has denied that Mr Biden has any cognitive issues despite a recent increase in verbal slip-ups.
The president also lauded his Vice President Kamala Harris - presumptive nominee for the Democratic presidential ticket - as "tough" and "capable".
He said: "She's experienced, she's tough, she's capable.
"She's been an incredible partner to me and a leader for our country.
"Now, the choice is up to you, the American people."
Mr Biden said he will focus on his job as president over his remaining six months in office.
He pledged to help make NATO stronger and more united, stop Russian President Vladimir Putin from taking over Ukraine, work toward a ceasefire deal in Gaza and push for Supreme Court reform.
He is to meet Israeli Prime Minister Benjamin Netanyahu today to discuss efforts to negotiate a Gaza ceasefire.
It was the fourth time Mr Biden used the formal setting of the Oval Office since taking office in 2021.
His last Oval Office speech was on 15 July when he urged Americans to cool the political rhetoric after the attempted assassination of Mr Trump.
Mr Biden's political career began when he was elected to the Senate in 1972 at age 29, becoming the sixth youngest US senator.
He will conclude his White House tenure on 20 January 2025, as the oldest American president when he will have already turned 82.
"The defence of democracy is more important than any title," Mr Biden said.
The president said: "I draw strength, and find joy, in working for the American people.
"But this sacred task of perfecting our Union is not about me.
"It’s about you. Your families. Your futures. It’s about 'We the People.’"
