A congressional Democrat told NBC News that Democrats need to be more responsive to concerns about President Biden's age as aides continue to make adjustments in an effort to avoid "embarrassing and dangerous" incidents. 

"The Democratic Party needs to be responsive to what people are saying about Biden and their concerns that they have with his age," the congressional Democrat, who remained anonymous, told the outlet. "The number of text messages that I got after the president fell … I mean, my phone was blowing up. People are like, ‘Oh, this is so bad.’"

After the president tripped at the Air Force Academy's recent graduation ceremony, some of Biden's aides reportedly got together to discuss how to make sure it "never happens again," according to NBC. 

NBC News reported that voters were watching Biden and were seeing "hardening impressions that it’s time for him to step aside."

Biden fall

President Biden is helped up after falling during the graduation ceremony at the Air Force Academy in Colorado on June 1, 2023. (Brendan Smialowski / AFP via Getty Images)

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A former Western diplomat, who remained anonymous, told the outlet that the president is "quite frail."

"Physically, he’s quite frail, and he falls off his bicycle or whatever," the diplomat told NBC. "He doesn’t have the stamina levels of an Obama or a younger president. People worry about his physical frailty and running from age 82 to 86."

"That is really old by European standards, really, really old. We don’t have anyone that age," the diplomat said.

Biden has been seen using the lower staircase to board Air Force One, Politico reported on Wednesday.

NBC news article

NBC News article on how President Biden's campaign is addressing concerns about his age. (Fox News Digital)

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NBC's report noted the president was also using an "extra-large font" on his teleprompter during speeches and "note cards to remind him of the points he wants to make in meetings."

When pressed on his age, the president has told reporters and voters to "watch" him. 

He has also made the argument that his age is a benefit, suggesting that he knows more than most people.

President Biden Air For One

President Biden stumbles while boarding Air Force One in Montgomery, Alabama, on March 5, 2023. (Fox News)

"I know more than the vast majority of people. I’m more experienced than anybody who has ever run for the office, and I think I've proven myself to be honorable as well as also effective," he said during an interview with MSNBC.

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After the president fell at the Air Force Academy graduation, Biden's advisers let out a "collective groan," the outlet reported.

"It happened in seconds," a Biden aide reportedly told the outlet. "But it’s going to be in front of us for months and maybe years."