JD Vance is taking some hits on social media after he took time away from discussing the upcoming 9/11 anniversary ceremony to insult former President Joe Biden.

During a White House press briefing Thursday, the vice president mentioned he would be attending the 25th anniversary ceremony of the Sept. 11 attacks in New York. Vance will be representing the current administration instead of President Donald Trump, who reportedly bowed out because no speeches would be allowed.

Besides Vance and Biden, former Presidents Barack Obama, George W. Bush and Bill Clinton are planning to be at ground zero.

Initially, Vance attempted to promote the event as bipartisan, saying he thinks the “sense of commonality and common purpose that we all had on 9/11” is “something that we should really try every single day to get back to.”

But Vance couldn’t leave well enough alone and had to make sure people knew his real thoughts by making a joke at Biden’s expense.

“As you guys can probably guess, I’m really looking forward to hanging out with Joe Biden. I’m sure that we’ll have many, many intense intellectual conversations. ... We’ll have a great time,” Vance said sarcastically.

JD Vance on the 25th anniversary of 9/11: "As you guys can probably guess, I'm really looking forward to hanging out with Joe Biden. I'm sure we'll have many many intense intellectual conversations. We'll have a great time." pic.twitter.com/oxX0lwb6iz

Many on social media thought his attempt at a Biden joke was out of line, considering the former president was diagnosed with Stage IV prostate cancer last year.

To take a day dedicated to shared national grief and use it to take petty, sarcastic swipes at Joe Biden says everything you need to know about JD Vance. No charisma. No substance. Just small-minded malice and desperate insecurity. https://t.co/rfHV9Fi5iZ

Discussing 9/11 seems like the perfect time to get a cheap shot in at the ex-President who is terminally ill. https://t.co/CP4PW7Jf9A

Yep that’s what it’s all about. Mocking a man who’s no longer in power while standing on the site America’s deadliest terrorist attack. That’s how we know he cares. https://t.co/FLKj290FH8

Vance is such a prick. Biden is undergoing cancer treatment, but glad JD could use the anniversary of 9/11 to take a cheap shot at him. https://t.co/CeTv3o8fNZ

He thinks he's so cool, and it comes off so pathetichttps://t.co/5xWZYgTmiR

Does he think going to the 9/11 memorial is some party https://t.co/g0w21BV28o

The JD stands for Joke Delivery https://t.co/uN6uURqFfC

And people wonder why no one, literally NO ONE, likes JD Vance. https://t.co/EU72ei4347

He’s talking about the 25th anniversary of the largest terrorist attack in American history as a laugh line to smear the former President. What a pathetic worm of a man. https://t.co/ipCZUYmchY

It's awesome how he always tries to do Dark Humor but there isn't really ever the actual essence of a joke in what he formulates, and he always somehow walks over his own punchline https://t.co/GGJzRCeGNO

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