During his father’s inauguration, Barron Trump had a brief encounter with former President Joe Biden, sparking curiosity among social media users who are eager to learn more about their interaction.

Accompanied by his mother, Melania Trump, as well as his siblings, the 18-year-old student at New York University attended President Donald Trump’s 2025 inauguration in Washington, D.C.

Following Donald Trump’s swearing-in for a second term as president, Barron was observed exchanging greetings with the departing president and Vice President Kamala Harris in the U.S. Capitol Rotunda.

Now, a TikTok video that showcased Barron’s short exchange with the 82-year-old former president has completely captivated the internet.

In the clip, Barron was seen grabbing Biden’s hand before he leaned in and appeared to whisper something in Biden’s ear. 

While the Delaware-native had a smile on his face before his interaction with Barron, after the teen made his mysterious comment, Biden replaced his happy expression with a solemn face – and people on the web have been dying to know what he said.

On TikTok, where the video has received more than 500,000 views, some users in the comments section made their guesses at what Barron could’ve possibly told Biden to make him pull such a somber expression.

‘Looks like he said, “You’re done” lol,’ one person claimed.

‘You forgot to pardon yourself,’ someone else suggested. 

A third user wrote: ‘I don’t know what he said, but I bet I want it on a shirt.’

‘Not sure what he said but wiped the smirk right off his face,’ another person pointed out.

Others, however, claimed he was actually leaning in to talk to Harris and not whispering in Biden’s ear. 

The viral video comes after Barron was praised as ‘a true gentleman’ for shaking hands with Biden and Harris at his father’s inauguration. 

The gesture of peace also led to social media users claiming that the college freshman was ‘raised well’ by his mother Melania.

‘I was very impressed by that gesture and from someone so young. To go across the aisle and shake their hands was a very classy and mature thing to do. Good for Barron,’ one person said.

‘Such a good young man… That gesture just tells you everything. Well done Melania,’ another said.

Barron showed off a slicked back new hairstyle as he attended his father’s historic second inauguration. 

He looked smart in a long black overcoat with a white shirt and purple tie as he attended a church ceremony at St. John’s Episcopal Church opposite the White House on Monday morning.

The NYU-Stern student, who towers over his dad and mother at six-foot-nine, kept his expression neutral as he walked into church and sat in a pew alongside his parents.

After Trump was sworn in during a ceremony surrounded by tech titans and media moguls, the president promised a ‘new golden age of America.’

‘You are now witnessing the dawn of the golden age of America,’ he declared to great applause at a downtown Washington arena. ‘We’re not going to put up with that crap anymore.’ 

In the first hours of his second term, Trump immediately delivered on his promise by signing an executive order to undo 78 of Biden’s presidential actions. 

He announced a regulatory freeze preventing bureaucrats from issuing regulations until the Trump administration has full control of the government and a freeze on all federal hiring except for military and a few other essential areas.

Trump ordered a requirement that federal workers return to full-time in-person work, a directive to every department and agency to address the cost of living crisis, and announced withdrawal from the Paris climate treaty.

He also signed a government order restoring freedom of speech and preventing censorship of free speech and one ending the ‘weaponization of government against the political adversaries of the previous administration.’