The Four Dos and Don'ts for Starmer when it comes to Donald Trump - Nigel Nelson

But back to Lauren’s brassiere. Selling Sunset reality star Christine Quinn tweeted disapprovingly of “chesticles hoisted like NASA was launching them into orbit”. She added: “Cute outfit, sweetheart, but wrong place.”

Christine wasn’t cutting Zuckerberg any slack either. “His cold, dead eyes were locked on her cleavage like he was trying to programme his next algorithm off it.”

There was a further amusing moment when the new President couldn’t share a celebratory kiss with wife Melania because her wide-brimmed hat fended him off, another fashion faux-pas, I’m sure, in some Trump circles.

But none of that should detract from the importance of Monday. Monday was the day the world changed. The world’s most extraordinary, weird and unpredictable politician is now the most powerful man in the world.

I can understand why Donald Trump doesn’t think the rules apply to him because plainly they don’t. He can make and break a promise in an instant or spout utter tosh and yet crowds still go wild with joy.

The political establishment in 2016 made the mistake of taking him literally but not seriously while his supporters took him seriously but not literally.

His inauguration speech was the familiar confection of bluster, bravado and bull and yet an audience of intelligent men and woman applauded enthusiastically.

Except, that is, the stony-faced Joe Biden and Kamala Harris - who dressed in funereal black for the occasion.

Trump’s assertion America should take back the Panama Canal because the Chinese operate it was bunkum because they don’t. And as for astronauts on Mars, NASA thinks that will be impossible until Trump is long gone.

Then there’s closing America’s southern border with Mexico as a matter of urgency. That’s a big ask. There’s nearly 2,000 miles of it to close.

What about ending the war in Ukraine on his first day? Well, that didn’t happen, did it? Trump’s envoy to the Ukraine and Russia, retired lieutenant-general Keith Kellogg, says 100 days might do it.

Imagine the flak Keir Starmer, Kemi Badenoch or Nigel Farage would get if one of their manifesto pledges was 99 per cent out?

But I do concede that it was Trump’s demand for a ceasefire in Gaza before the inauguration took place which led to Israeli hostages now back with their families.

See, I’m not entirely negative about him. During his last presidency he didn’t start any foreign wars and sitting down with North Korea’s Kim Jong-un may have got nowhere but it was worth a shot.

Trump is now more confident and experienced than when he began his first term in 2017 which must be a plus, though majorities in the House, Senate and Supreme Court mean he can do pretty much what he likes which is a minus.

Trade tariffs on China (anything between 60 - 10 per cent depending on which day you catch Trump on), 25 per cent on Mexico and Canada and 10 per cent on the rest of the world may come to nothing.

They would not only hurt us, but Americans as well with higher inflation.

And rounding up 11 million undocumented migrants would crucify economic growth. Not just because of the wealth they generate by working, but also through the £60billion in annual taxes they contribute.

The Internal Revenue Service are not too fussy about immigration status when it comes to tax collection, happily issuing a tax identity number to anyone without a social security one.

Banning offshore wind turbines, pulling out of the Paris climate change agreement (again), and letting rip on oil and gas with the order to “drill, baby drill” jeopardises net zero.

There’ll be one hell of an international row over that given that America chucks out 11 per cent of global pollution, second only to China.

So how should Labour deal with Donald Trump? Not by labelling him the “spectre of resurgent fascism” as London mayor Sadiq Khan did, that’s for sure.

Keir Starmer and Trump are never going to see eye to eye, but that doesn’t mean they have to go head to head. So here are the do’s and don’ts for when they meet..

DON’T keep banging on about the special relationship. Americans rarely use the phrase, and when they do it’s only to make us Brits feel wanted.

DO encourage the new administration to use its global power to foster international stability - the so-called Washington consensus. Trump likes to be seen as a peacemaker.

DON’T suck up to this president quite so much. Trump is a bully and doesn’t respect lickspittles. A little flattery is fine, but plain-speaking works better. It’s not as if he doesn’t know how rude Starmer was about him in the past.

DO side with the US when she gets herself into a pickle. Our relationship may not be special, but the US needs to know our friendship is genuine.

No matter who occupies the White House.