dotard

Before the two leaders began their strained rapprochement, they had exchanged some sharp words, with Kim calling Trump a "dotard" and Trump implying Kim was "short and fat."

The pair once traded insults and threats, with Trump calling Kim "little rocket man" and the North Korean leader calling the US president a "mentally deranged dotard".

It was a far cry from the height of missile-testing tensions in 2017 when Trump slammed Kim as "rocket man" and the younger man branded the American president a "mentally deranged US dotard".

In late 2017, both were exchanging threats, with Mr Trump calling Mr Kim 'little rocket man' and Mr Kim calling Mr Trump a 'mentally deranged dotard'.

In late 2017, both were exchanging threats, with Mr Trump calling Mr Kim "little rocket man" and Mr Kim calling Mr Trump a "mentally deranged dotard".

Pyongyang responded by calling Trump a 'dotard' and questioning his mental stability.

Pyongyang didn't mince words either, calling Trump a "mentally deranged dotard".

An exchange of insults ensued, with Kim calling out the "mentally deranged US dotard." While at the UN, Trump is expected to meet with South Korean President Moon Jae-in to receive a private message from Kim.

So far, the only politician who has done so is the North Korean leader, Kim Jong-un, who famously called Trump a "mentally deranged dotard." A few months later, they were sitting at a table together, watching a movie trailer the American president had commissioned to encourage his North Korean counterpart to embrace a new era of peace.

It's a far cry from the 'dotard' label their government slapped on him last year.

The summit was a remarkable change in dynamics from less than a year ago, when Mr Trump was threatening "fire and fury" against Mr Kim, who in turn scorned the American President as a "mentally deranged US dotard".

Only a few months ago, Kim and Trump were swapping personal insults such as "dotard" and "little rocket man" and the North conducted its six and most powerful nuclear test, as well as firing missiles over Japan.

S) President, while armed with a nuclear deterrent.' Several diplomatic sources echoed a similar view, claiming warm words and positive optics seemed to be a long way from when Trump was threatening to rain down 'fire and fury' on Pyongyang and Kim attacked Trump as a 'mentally deranged US dotard.

Further, Trump and Kim called each other "mentally deranged US dotard" and "Little Rocket Man" respectively.

They have traded childish insults in the past, with Trump nicknaming Kim "Little Rocket Man" and the North Korean branding the US president a "mentally deranged dotard" in return.