He added the timing of their meeting was important as Trump would have heard "a certain story" from pro-Brexit lawmakers during the first stop-off of his European trip in Britain.
The UK still supports an worldwide agreement to curb Tehran's nuclear ambitions, but Trump has withdrawn the United States from the deal.
Mr Trump also appeared to express optimism for the future of Northern Ireland, despite the ongoing impasse between the leading parties. "And I think it will all work out very well, and also for you with your wall, your border".
Mr Varadkar pointed out that: "The thing we want to avoid, of course, is a border or wall". "You are the pride of our nation", Trump said in front of around 60 veterans, many of them in wheelchairs.
President Donald Trump will pay his respects Wednesday to American service members and allies who helped rescue Europe from Nazi Germany as he enters the midway point of his European visit.
The Brexit architect remarked that "nobody from our Trade Department has given me any indication that any serious work has been done at all" and expressed concern about "how much work America has done, and how little we've done". I don't know how @LeoVaradkar managed to keep a straight face.
Following the meeting, Varadkar attempted to excuse Trump's apparent lack of understanding of the Irish border.
"Somebody asked me a question today and I say "everything's up for negotiation" because everything is, but that's something that I would not consider part of trade".
"I am embarrassed for the people of Ireland". It also is a regular stopover for American officials on global flights, since its location on the eastern edge of the Atlantic Ocean makes it an ideal refueling spot for far-flung trips.
Not only did the avid Trump supporter capture the moment on camera, in her ordeal to fight the protest, she managed to hurt herself in the process as she tried to harm the balloon using a pair of scissors.
Donald Trump has arrived in Ireland and will spend the next two nights here in between a day trip to Normandy on Thursday. "I did say, 'Well, the United States right now has among the cleanest climates there are based on all statistics'". Organizers said an estimated 75,000 people joined the protest.
An American flag was put up behind the bar as Donald Jr was photographed sipping a Guinness.
We were unable to find comparable aerial footage of the anti-Trump protests in June 2019.
As is the case in Trump's two money-losing Scottish resorts, Doonbeg has stunning ocean views but has also, at times, been a lightning rod for controversy. Environmentalists anxious it would damage dunes and a public beach in the area.
Past year the White House took the Irish government by surprise when it announced he would be visiting Ireland - a declaration that was met with widespread protests - and confounded it again when it abruptly cancelled the Irish visit. "I certainly would have no problem with it", Trump said.