Joe Biden has confirmed that he will run for re-election in 2024, and is set to formally announce his intention to voters later today.
The US President, who would be 86 at the end of a second term, is expected to ask voters to give him more time to "finish the job".
And asked last night whether he would be running again, Biden told a Sky News reporter: "Yes!"
The announcement comes four years to the day since he declared his initial run for the White House by promising to heal the "soul of the nation" amid the turbulent administration of former president Donald Trump.
Already the oldest president in history, Biden he is betting his legislative achievements and more than 50 years of experience in Washington will count for more than concerns over his age.
A notable swath of Democratic voters have indicated they would prefer he not run, in part because of his age - concerns Mr Biden himself has called "totally legitimate".
Yet few things have unified Democratic voters like the prospect of Mr Trump returning to power and Mr Biden's political standing within his party stabilised after Democrats notched a stronger-than-expected performance in last year's mid-term elections.
Mr Trump, 76, is the favourite to emerge as the Republican nominee but faces significant hurdles of his own, including the designation of being the first former president to face criminal charges.
The remaining Republican field is volatile, with Florida Governor Ron DeSantis emerging as an early alternative despite questions about his readiness to campaign outside of his increasingly Republican-leaning state.
"Let's finish the job," Mr Biden said during his State of the Union address in February, listing everything from passing a ban on assault-style weapons to codifying a national right to abortion after the Supreme Court's ruling last year overturning Roe v Wade.
Buoyed by the mid-term results, Mr Biden plans to continue to cast all Republicans as embracing what he calls "ultra-MAGA" politics - a reference to Mr Trump's "Make America Great Again" slogan - regardless of whether his predecessor ends up on the 2024 ballot.
He has spent the last several months road-testing campaign themes, including painting Republicans as fighting for tax cuts for businesses and the wealthy while trying to cut social safety net benefits relied on by everyday Americans.
Many Democrats would prefer that Mr Biden did not run again.
A recent poll from The Associated Press-NORC Centre for Public Affairs Research shows just 47% of Democrats say they want him to seek a second term, up from 37% in February.
On the heels of the announcement today, Biden was set to deliver remarks to union members before hosting South Korean President Yoon Suk Yeol for a state visit at the White House. He plans to meet with party donors in Washington later this week.
Ahead of his re-election bid, first lady Jill Biden expressed disbelief at the persistent questions about her husband's intent to run.
"How many times does he have to say it for you to believe it?" she said in late February. "He says he's not done."
