President Donald Trump couldn't say with certainty if Chinese President Xi Jinping agreed that Iran couldn't have a nuclear weapon - the chief reason the President has given for launching the Iran war. 

Trump sat down with Fox News Channel's Sean Hannity directly after his meetings with Xi in Beijing on Thursday, which aired on Hannity's eponymous show Thursday night. 

The President characterized the meeting as warm and Xi a friend, but noted 'he's not going to respond too much,' when pressed by Hannity on whether the Chinese leader agreed that Iran shouldn't have nuclear capabilities. 

'He's a pretty cool guy,' Trump responded. 'He's not going to say, "that's a good point."' 

When Hannity asked Trump if he thought Xi agreed with him, Trump said, 'I think he did.' 

Despite Presidents historically avoiding domestic political hits while abroad, Trump also took time during the interview to slam Democratic Presidents Barack Obama and Joe Biden - and reveal the new nickname he had for the opposition party. 

'I came up with a new name,' Trump said, adding that he wasn't sure if he should share it. 

He then did. 

'Dumacrats,' he said. 'Because they're dumb, they're dumb. It's d-u-m. I got rid of the B. So, you're only changing one letter, right? E goes and the U comes.' 

Hannity had a laugh about it. 

'You know you take up more space in people's heads than any one person on the face of this Earth, right? You live rent-free,' the Fox News host responded. 

Hannity had started out the interview by suggesting Trump had gotten a much more lavish welcome than Obama, the last President to visit China before Trump's 2017 trip. 

Biden met with Xi several times and visited other Asian nations, but skipped a China trip. 

The President said that's because 'there's no doubt about ... we just have a good relationship.'  

'Well, I mean, if I got out of the plane and nobody was there to greet me, I would say that wouldn't be so cool,' he also said. 

But when pressed about what the Chinese might do to help the United States, Trump didn't yet have definitive answers. 

He's set to meet with Xi again Friday, before departing for Washington. 

When Hannity asked the President if he thought the Chinese may be able to influence the Iranians 'considering they are one of their biggest customers,' Trump answered with a shrug. 

'Yeah, probably, but umm, look, he's not coming in with guns, he's not coming in with weapons, they're not coming in shooting,' Trump answered.

The President then said that Xi did agree to buy US oil. 

Trump also touted a possible deal with China to buy 200 Boeing planes.

'I think it was a commitment,' he said.  

This is a breaking news story and will be updated.