
Joe Biden says he did not know he had cancer while he was president and would not have sought a second term if he already had been diagnosed.
The former Democratic president’s comments came in an interview with People magazine before the release of his White House memoir on Tuesday.
âIf I had known that I was feeling lousy because I had cancer,â said Biden, who turns 84 on Nov. 20, âI wouldâve not gone forwardâ with a 2024 reelection bid that ended after a disastrous debate performance against Republican Donald Trump.
Biden was diagnosed with metastatic prostate cancer months after leaving office in 2025.
âI donât think an 80-year-old man with cancer should be runningâ for president, Biden said in the interview.
Still, he argued that the June 2024 debate, less than five months before Election Day, was not a seismic event even if it accelerated Democrats’ concerns about his age â he was 81 at the time â and his ability to defeat Trump.
âFirst of all, I thought thereâd be another debate, which there wasnât,â Biden said. âBut notwithstanding the fact that there wasnât another debate, it didnât disturb me because it wasnât consequential.â
Within weeks, Biden announced he was ending his campaign and endorsing his vice president, Kamala Harris, who secured the nomination and lost to Trump in the general election.
Biden insisted he was able to perform his duties while he was in office. He said age itself was not disqualifying and meant he had experience and deep personal relationships with world leaders.
âI believe that on an objective basis, I was the best-equipped person to do the job,â he said.
His son Hunter told the BBC in August that the cancer had spread and was causing his father pain. “Itâs very painful and itâs very debilitating in many respects,â he said.
Since Joe Biden left office, his son has become a higher profile public presence, sparring with Republicans on social media, posting lengthy thoughts on the nation’s direction and launching his own cryptocurrency.
Joe Biden defended his son’s public persona and his decision to pardon Hunter Biden after the younger Biden’s 2024 conviction on federal felony gun charges and his guilty plea to federal tax charges. Hunter Biden also had faced years of scrutiny and withering Republican attacks over his international business dealings.
Hunter Biden has said the pardon damaged his father’s legacy, but the former president said Trump’s penchant for vengeance made it necessary.
âHe goes after people without any basis, whether theyâre viewed as an enemy. I knew what he would do,â Joe Biden said. âIf I hadnât pardoned â not just some of my family members, anyone whoâs dealt with me â he would go back and try to do harm to them.â
Biden called his son âone of the brightest men I know,â adding, âIâm really proud of him.â