An unlikely meeting between Hunter Biden and far-right internet personality Nick Fuentes for an independent web channel reportedly veered into an argument that nearly led to a physical altercation at a Philadelphia hotel over the weekend.

According to a report published Monday by TMZ, the meeting between Biden — the son of former Democratic President Joe Biden — and the white nationalist podcast host was brokered by Andrew Callaghan, founder and host of the gonzo video news series Channel 5, and took place in a Philadelphia hotel room. The meeting of the two men, both of whom have courted controversy in recent years, was billed as a no-limits conversation where any topic was on the table.

The outlet reported, citing “sources familiar with the situation,” that the conversation was initially affable but soon grew tense as the men on opposite sides of the political spectrum moved to different topics. Eventually, the tension turned into an argument, and it grew so heated that Callaghan had to intervene before the situation escalated into violence.

The interview is set to air later this month, according to TMZ. Neither Biden, Fuentes nor Callaghan has spoken publicly about the interview and what happened between the three of them.