Oh dear god. At the end he just starts explaining what an election is and what will happen with Brexit and how excellent it will all be, as if anyone had asked him to explain all the things. He is so BIZARRE.

He also explains to Leo Varadkar what a border is and what kind of border there is between Northern Ireland and Ireland. The taoiseach makes a brief attempt to set him straight but Trump just plunges on, talking nonsense as if reading it from The Big Book of Nonsense.

Trump, sitting next to a visibly uncomfortable taoiseach, Leo Varadkar, waded into the Brexit debate minutes after Air Force One touched down at Shannon airport on Wednesday afternoon.

“I think it will all work out very well, and also for you with your wall, your border,” he said at a joint press conference. “I mean, we have a border situation in the United States, and you have one over here. But I hear it’s going to work out very well here.”

Varadkar interjected that Ireland wished to avoid a border or a wall, a keystone of Irish government policy.

“I think you do, I think you do,” Trump said. “The way it works now is good, you want to try and to keep it that way. I know that’s a big point of contention with respect to Brexit. I’m sure it’s going to work out very well. I know they’re focused very heavily on it.”

In other words Trump explained what Ireland wanted to Varadkar. He did. You can see him do it.

In London on Tuesday Trump met the Brexiter politicians Nigel Farage, Iain Duncan Smith and Owen Paterson, all of whom have played down the idea that the border between Ireland and Northern Ireland will be a problem after the UK leaves the EU.

Trump echoed their confidence in Shannon. “There are a lot of good minds thinking about how to do it and it’s going to be just fine. It ultimately could even be very, very good for Ireland. The border will work out.”

The Irish government has mounted an intense, three-year diplomatic effort arguing the opposite, that Brexit threatens peace and prosperity on the island of Ireland.

Never mind that, Trump knows better.

The Irish president, Michael D Higgins, made an unexpected intervention on the eve of the visit by calling Trump’s policy on the climate emergency “regressive and pernicious”, a critique protesters will echo at rallies in Shannon and Dublin.

Trump told reporters he was unaware of Higgins’ comments and reiterated that the US had enjoyed cleaner air and water since he became president, a claim he also made in London.

Which would be a miracle if it were true, since he repealed various clean water regulations.