Transcript for Historic summit: Trump in Singapore

And the president's continued its focus on the trade comes as he's expected to turn his attention. Good at high stakes meeting with Kim Jung. And yeah ABC's Karen Travers is joins us now from Singapore with the latest on the Twitter tirade. And the suddenly good morning to you Karen Nash should mention that you know you you're you're a fan of The Sims sixers year old. How their Al Allen Iverson used to talk about practice nothing. Not a dame not a game at the practice. Is this president sort of taking a page from Allen Iverson and not needing practice before the game. Yet he's ready for the big game that's exactly hit ten is that he doesn't really feel like you need to do a lot of crap where did you heard in Jonathan Karl keeping that he didn't pairing for the meeting his whole life but keen didn't tell us that he's spent the very long flight here from the G-7 summit in Canada. Sitting down for meetings going over briefing reports and getting ready for what's going to be. It very high stakes critical meeting on Tuesday tearing things apart now today Monday to light day for the president had just a few moments ago we saw him with the prime minister of Singapore. This chance for him to say thank you thank the prime minister of the hospitality that Singapore showing that hosting this historic summit they are now having a working lunch but that's fit for the president we're not expect to see him for the rest of the day he's going to be behind closed doors offensively he's preparing for this meeting that as you heard him say. A lot of things going in and using his gut and instinct to see where he takes negotiation. Right well good thing he's prepared because he seems to be busy coming fresh off that G-7 summit what's the big take away there. Well this was a very hostile crowd for president truck and last week it was very clear that the president of the looking forward to going to Canada you very eager to head straight on to Singapore and he would go into its proud that we are not very happy about the terrorists and feeling aluminum that the united seasons recently went on key allies like candidates are can't. Several European countries and heaven that meeting you heard from the leaders of those countries said they were trying the figure given president trying to change his mind about it clearly not going to happen to hand and it really erupted into a very public battle between presidents from Justin together we saw that photo of -- Merkel the German chancellor staring down the president and eating. It's now also escalated to the president of CU had a tough economic advisor Larry Kudlow as saying that. And that essentially Justin Trudeau's stabbed the United States and present trump in the back with his comments on trade. Another top trade advisor for the president that there's a special place and help for people who go up against the president like this. And it pushed back having this is really a very tense disagreement that is certainly not going to be resolved and the White House I think expressing concerns that immediately. As setting a bad tone heading into the president's meetings with Kim Jung it. We'll the president once called content on maniac mad men and the sick puppy so just a trio must look at all those harsh words and so these are all just love words is a love taps. I hate our Karen Travers there for us in Singapore appreciated and we will have. Continuing coverage from Singapore here on ABC and Jim may well have the latest developments this morning we'll also be live tonight around 9 o'clock eastern. When president trump and Kim Jung and meet for the first time staying in that region.

This transcript has been automatically generated and may not be 100% accurate.