During an interview on Wednesday, Vice President Kamala Harris expressed her readiness to fulfill her constitutional duty and assume the presidency if President Biden were unable to govern due to concerns about his health and age.

Biden, who is currently 80 years old and will turn 81 in November, remains the oldest serving president in U.S. history.

Should the Democrats secure victory again in 2024, he would be 82 when potentially inaugurated for a second term, concluding it at the age of 86. Although Harris referred to the possibility as “hypothetical,” she affirmed her preparedness.

“Joe Biden is going to be fine, so that is not going to come to fruition,” Harris assured The Associated Press in Jakarta, Indonesia, where she attended a regional summit.

“But let us also understand that every vice president — every vice president — understands that when they take the oath, they must be very clear about the responsibility they may have to take over the job of being president,” she continued.

Harris also dismissed concerns about Biden’s age, despite widespread perceptions that he is too old for the presidency. A recent AP/NORC poll revealed that 77% of Americans and 69% of Democrats believe Biden is too old for a second term.

Some Republican presidential contenders, including former South Carolina Gov. Nikki Haley, have argued that a vote for Biden effectively equates to a vote for Harris.

“I see him every day,” Harris said of Biden. “A substantial amount of time we spend together is in the Oval Office, where I see how his ability to understand issues and navigate complex matters in a way that no one else can to make intelligent and consequential decisions on behalf of the American people has played out.”

She continued, “So, I will say to you that I think the American people ultimately want to know that their president delivers. And Joe Biden delivers.”

Harris herself ran for the presidency in 2020 but withdrew from the race after the Democratic primary debates in December 2019. She garnered fewer pledged delegates than fellow candidates Michael Bloomberg, Pete Buttigieg, Amy Klobuchar, or Tulsi Gabbard.

During the interview, Harris drew on her previous experience as a prosecutor to argue that former President Trump should be held accountable for the events on January 6, 2021, at the U.S. Capitol and the efforts to overturn the 2020 presidential election results.

Harris served as the San Francisco district attorney from 2004 to 2011 and California’s attorney general from 2011 to 2017.

As for Trump, the current frontrunner for the 2024 Republican presidential nomination, he is facing four federal indictments, including one in Georgia for allegedly attempting to reverse the 2020 election results.

“Democracies are very fragile,” Harris cautioned during the interview. “They will only be as strong as our willingness to fight for it.”

“We as Americans, I believe, have a very significant interest, both in terms of our security but also our prosperity, today and in the future, in developing and strengthening these relationships,” she noted.