A convicted con artist who failed a lie detector test has once again made bizarre claims that he watched former US president Barack Obama smoke crack before they had sex.

Ousted Fox News host Tucker Carlson has interviewed Larry Sinclair, who previously claimed he had slept with Obama in a limousine in 1999 when Obama was an Illinois state senator.

Carlson said: "In 2008 it became really clear that Barack Obama had been having sex with men and smoking crack and a guy came forward, Larry Sinclair, and said 'I'll sign an affidavit and I'll take a lie detector' and he did. Nobody reported it."

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On Tuesday evening, September 5, Carlson released a promo video on X ahead of a tell-all interview with Sinclair to be released the following day.

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The ousted Fox host claimed that Obama would have sex with men and smoke class A drugs

In it, Sinclair repeats the claims, telling the host: "I had given Barack $250 to pay for cocaine, I start putting a line on a CD tray to snort and next thing I know he's got a little pipe and he's smoking it.

"So I just started rubbing my hand along his thighs to see where it was going, and it went the direction I had intended it to go."

Sinclair claims the alleged tryst happened in 1999, and that they had sex twice. He continued: "I had no idea who he was. It definitely wasn't Barack's first time and I would - almost be willing to bet you it wasn't his last."

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Sinclair claims the alleged tryst happened in 1999, and that they had sex twice

Sinclair made headlines during the 2008 presidential campaign with a short YouTube video in which he made the same claims,.

Daniel Parisi, a political blogger for the now-defunct Whitehouse.com, challenged Sinclair to take a polygraph, which he failed.

A community note on Carlson's original X stated that Sinclair has a long history of making outlandish and unsubstantiated claims.

He also has felony convictions in multiple states for charges related to forgery and deceit and no credible agency has been able to substantiate any of Sinclair's claims.

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