What Barron Trump really said to Joe Biden before Donald's brutal inauguration speech

It has now been revealed what Barron Trump really said to Joe Biden before his father's brutal inauguration speech earlier this year.

The 79-year-old Republican, who regularly spouts views on the 'nuclear family' and conservative family values, shares five children with three different women.

He shares sons Eric and Donald Trump Jr., and his daughter Ivanka Trump, with his late ex-wife Ivana Trump, a daughter Tiffany Trump with his ex-wife Marla Maples and then his youngest, 19-year-old Barron, with the current First Lady Melania.

Barron went viral earlier this year, just after Trump was sworn in as the 47th president of the United States, before his inaugural address back in January. Trump spent most of the speech slating Biden, despite the former president sitting just a few feet away.

The viral moment in question saw Barron speaking with his father's predecessor, Democrat Joe Biden, and now, after nearly a year, Trump's third-eldest child, Eric, has spoken out on what actually went down.

Barron Trump's older half-brother Eric has revealed what he said to Joe Biden during the viral inauguration moment at the start of this year (Saul Loeb - Pool/Getty Images)

Speaking on The Megyn Kelly Show last week (14 November), Eric brought up: "Do you remember that whole controversy where [Barron] went up to Biden … and [the media] had all these like lip-reading experts [analyse it], and they’re like, 'Barron just told Biden to go F himself'?

"So one night … I call Barron, I go, ‘'Buddy, look, what did you actually say?' And he goes, you know, like - it was something so polite I almost wouldn’t even get it right - but [something], like, 'Congratulations and best of luck to you' - or something like that."

Eric confirmed that what his younger brother said during the headline-making exchange was 'something very respectful'.

Eric then recalled that he once spoke about the moment with podcaster Patrick Bet David, telling him that Barron 'doesn’t have that in him'.

"He’s a nice guy. He’s probably thinking it. He definitely has it up here [motioning to his head], but like, he’s too courteous to actually go out there and say it," Eric added.

"Barron’s a really nice kid."

According to Eric, 19-year-old Barron was 'so polite' during the Biden interaction (Pool / Pool / Getty Images)

At the time, the clip captivated millions of viewers, with many spectators wondering what on Earth the duo could have been chatting about so intimately.

In the clip, the teenager could be seen at one point reaching for 82-year-old Biden's hand, before leaning in close to whisper something in his ear.

A lip reader previously came to the rescue with a suggestion for what words could have actually been exchanged during the interaction.

Offering an explanation for what took place between the former president and the current president's youngest child, expert witness forensic lip reader Jeremy Freeman told LADbible what he believes Biden said: "It's good to see you man," to which Barron responded with a slightly bizarre 'Exactly'.

Responding 'exactly' to someone saying 'it's good to see you' isn't exactly a normal response - something which could potentially explain why Biden looked so perplexed just moments after.