Donald Trump may actually have finally lost it this week.

While the US president already has a reputation for being unpredictable, mercurial and chaotic – to say the least – he seems to have taken it to a new level in the last few days.

The maverick Republican picked a fight with Canada by starting a trade war and then rubbed salt in the wound by renaming Lake Ontario, one of the Great Lakes on the border between their countries, Lake America.

He upped the pettiness by sharing AI videos showing Canadian geese with his trademark blonde hair and carrying machine guns patrolling the shores of “Lake America”.

Trump is also all over the place with the Iran war, a conflict he started in February.

The US-Israeli strikes against Tehran gave the Iranians the chance to seize control of the major oil shipping lane, the Strait of Hormuz.

They have let almost no trade through the major waterway in the last six months and the global economy continues to suffer.

America’s allies in the Gulf are suffering the real-world consequences as Iran has retaliated by hitting US military bases in the region.

But the president seems to be in denial about the reality of the war.

He even posted an AI video of a US attack on an Iranian oil hub which never actually happened.

Trump appears to be testing new UK prime minister Andy Burnham, too.

The president has refused to deny reports America could stop supporting Britain’s claims to the Falkland Islands.

If the States did withdraw its backing for the British Overseas Territory – and instead start supporting Argentina’s claim to the archipelago – then it would spell major trouble for the UK-US “special relationship” and trigger Burnham’s first international crisis.

Could Trump be looking to punish the UK for not supporting his offensive on Iran, as a leaked Pentagon email from April suggested?

Or is it his way of forcing the government to spend more money on defence. With Trump, you simply can never tell.

This is not the first time the president has upended international diplomacy, of course – his insistence Greenland belongs to him continues to rile Nato members – but his behaviour does appear even more illogical than usual.

It hardly seems politically savvy to focus on the international stage when Americans are preparing to elect members to Congress in the November midterm elections.

The president may not be on the ballot paper but he needs Republicans to hold the Senate and the House of Representatives to get key legislation passed.

Current predictions suggest the electorate are poised to deliver a brutal blow to Trump and his party by handing control of Congress to the Democrats.

Americans are concerned about the cost of living and elected Trump on the promise that he would put “America First” and bring prices down.

Instead, his war in Iran has led to a spike in oil prices and pushed up the cost of living both in the US and around the world.

There is growing anger that he rarely seems focused on the everyday problems of the very people who voted him into the White House.

So why is he still doubling down on that bizarre decision this week?

Listen to Commons People as we unpack the fallout from the recent Trump drama and why he cannot continue to ignore his domestic problems.

Listen to Commons People, the podcast that makes politics easy. Every week, Kevin Schofield and Kate Nicholson unpack the week’s biggest stories to keep you informed. Join us for straightforward analysis of what’s going on at Westminster.