WASHINGTON — President Joe Biden addressed concerns about his age Wednesday, saying Americans will be able to make their own determination whether he has what it takes to serve a second term in the White House.

"I can't even say the number. It doesn't register with me," Biden, 80, said in response to a reporter's question during a joint press conference with South Korean President Yoon Suk Yeol. "One of the things that people are going to find out is, they're going to see a race, and they're going to judge whether or not I have it or don't have it." 

  JOE BIDEN AND THE AGE QUESTION

 Would be 86 in 2028: Biden, who announced his reelection bid Tuesday, is already the oldest-serving president. If he wins reelection in 2024, he would be 86 when his second term ends.

 Concerns from Democrats: Most Democrats, according to multiple polls, say they prefer a different presidential nominee, with Biden's age topping their concerns.  

 Biden took 'hard look' at age: "I respect them taking a hard look at it," Biden said. "I'd take a hard look at it as well. I took a hard look at it before I decided to run and I feel good. I feel excited about the prospects."