Nikki Haley mocked Joe Biden for his age, predicting that he'll die in 5 years and won't live to see the end of a second term

• Nikki Haley took a swipe at President Joe Biden's age, suggesting he won't live past 86.
• She told Fox that Biden will likely die before he reaches the end of a second term.

GOP presidential candidate Nikki Haley took aim at President Joe Biden's age in a bid to undermine his campaign on Wednesday, predicting that he won't live until the end of a second term.

"I think we can all be very clear and say with a matter of fact that if you vote for Joe Biden, you really are counting on a President Harris," Haley said in an interview on the Fox News show "America Reports."

"Because the idea that he would make it until 86 years old is not something that I think is likely," she told hosts Sandra Smith and John Roberts.

Biden, who turns 81 in November, would be 86 by 2028 — the end of his second term, if he's reelected.

The president announced his reelection bid with Vice President Kamala Harris on Tuesday, just one day before Haley commented on Fox about his age.

Biden is the oldest sitting president in US history. A February memo from the White House physician states that Biden is being treated for acid reflux, spinal arthritis, atrial fibrillation, and high cholesterol.

Biden's health condition is stable, per the memo, which declared him a "healthy, vigorous, 80-year-old male" who exercises at least five days a week.

Haley, 51, previously called for mandatory "mental competency tests" for politicians older than 75, also taking a swipe at former President Donald Trump's age.

Trump, who is also running for president, would be 78 if he clinches the White House in 2024.

In Washington, US political leadership is becoming more advanced in age across the board. Insider's 2022 "Red, White, and Gray" series investigates the costs, benefits, and dangers of an America helmed by older politicians who must govern on issues central to the future of the country's youth.

Representatives for Haley and the White House did not immediately respond to Insider's requests for comment sent outside regular business hours.