Currently on the Vietnam leg of a five-nation sweep through the region, the US president, who has been relatively quiet on Twitter since leaving Washington, put out half a dozen tweets in quick succession ahead of his official welcoming ceremony in Hanoi.
The missives covered a range of targets and subjects -- from the critics of his desire for a close relationship with Russian President Vladimir Putin to China's efforts to rein in Pyongyang's nuclear weapons programme.
And they ended with a tongue-in-cheek tweet about his efforts to make "a friend" of North Korea's Kim.
"When will all the haters and fools out there realise that having a good relationship with Russia is a good thing, not a bad thing," wrote the US president, who met with Putin several times on the margins of the just concluded APEC summit in the Vietnamese resort of Danang.
"There (sic) always playing politics - bad for our country. I want to solve North Korea, Syria, Ukraine, terrorism, and Russia can greatly help!" he added.
Speaking to reporters on Air Force One while flying to Hanoi on Saturday, Trump had said he believed Putin was being sincere when he denied meddling in the 2016 US presidential election.
'He didn't meddle'
Trump, whose key former aides are under US investigation for possible collaboration with the Kremlin, said he had repeatedly asked Putin about the claims during their chats in Danang.
"He (Putin) said he didn't meddle. I asked him again," Trump said. "I really believe that when he tells me that, he means it."
In May, US intelligence chiefs told Congress they agreed with their analysts' conclusion that Russia had meddled in the election.
And in January, 17 US intelligence agencies took the extraordinary step of stating publicly that they believed Russia did try to interfere.
In a statement to CNN after Trump's remarks on Air Force One, CIA director Mike Pompeo, who was appointed by Trump, said he still believed in that evaluation.
Immediately after his Twitter tirade on Sunday, Trump was greeted by a guard of honour and flag-waving schoolchildren at a damp welcoming ceremony at the Presidential Palace in Hanoi's historic French quarter.
The US leader was meeting the top communist leadership Sunday for talks that could touch on Vietnam's gaping trade deficit and beefing up military support in the disputed South China Sea, which Beijing claims most of.
'Short and fat'
Taking exception to descriptions by North Korean officials and state media of him as an "old" man, Trump suggested he was disappointed by what he took to be a personal attack from the North's young leader.
"Why would Kim Jong-un insult me by calling me "old," when I would NEVER call him "short and fat?" Trump said.
"Oh well, I try so hard to be his friend - and maybe someday that will happen!" he added.
North Korea is extremely sensitive to any remarks -- even when not meant seriously -- that might appear disrespectful of the country' ruling Kim dynasty, whose members are revered as near deities.
Over the past week, Trump has urged Asian leaders to take a united front against the threat posed by the isolated North, warning at APEC that the region "must not be held hostage to a dictator's twisted fantasies".
Late Saturday, Pyongyang hit back, calling his Asia trip "a warmonger's visit for confrontation" and saying it would only serve to accelerate Pyongyang's push for nuclear statehood.
In another tweet Sunday, Trump said Chinese leader Xi Jinping had agreed to toughen sanctions against North Korea, whose impoverished economy is hugely reliant on trade with its giant neighbour.
"President Xi of China has stated that he is upping the sanctions against (North Korea). Said he wants them to denuclearise. Progress is being made," he wrote.
The US administration thinks China's economic leverage over North Korea is the key to strong-arming Pyongyang into halting its nuclear weapons and missile programmes.
(Except for the headline, this story has not been edited by NDTV staff and is published from a syndicated feed.)