Jon Sopel

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It's not unusual for former political allies to fall out. It happens all the time. But normally it's done in private, and maybe hinted at in public. Not this time. Not with this President.

This is a vicious knife fight between Donald Trump and his former campaign chief and White House Chief strategist being played out across social media.

Other Trump family members and supporters are piling in too. Why? Because Steve Bannon has enraged Donald Trump with his description of a meeting that took place between the president's son, Don Jr, and son in law, Jared Kushner, with a Kremlin-linked, Russian lawyer as unpatriotic and treasonous.

He's talked about how clear it is what the Special Counsel, Robert Mueller, is investigating - whether the Trump organisation was laundering dirty Russian money. Donald Trump has fired back in the way only he knows how. He has met fire with fire, accusing Bannon of having lost his mind, of not being that influential, of being a pretender. Lost his mind. Wow.

So much for the spat. Does it matter? Well yes it does.

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For Roy Moore it looks like the next time he saddles up his horse it will be to ride off into the sunset.

The maverick Christian conservative who enjoyed the full-throated support of Steve Bannon, the slightly-more-tempered endorsement of Donald Trump and the outright antipathy of certain sections of the GOP, has failed in the reddest of red states. So how much should be read into this defeat?

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This president has played a lot of golf since he won the election. He seems to do a lot of his business on the lush Trump properties - senators are invited to come and play a round while he can bend their ear to back this or that cause.

The way the president does business is not always pretty. There seems to be unnecessary noise and more collateral damage than there needs to be.

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This week across America, millions of children will be getting ready to go back to school and returning home that evening with their first work assignment - an essay with the title: "What I did on my summer holidays."

Now imagine for a second you're Donald Trump, and you've just been given that piece of homework. I think the first thing you're going to do is ask for a few extra sheets of paper because, what a summer.

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We'll get to the G20 in a moment. But let's start with organisational psychology. There are some groups or teams that are greater than the sum of their parts, and there are others - that for all the talent and power they may have individually - are less.

Think soccer. Think last year's European Championship. Then tiny little Iceland were the heroes of the competition - and not just because of their wonderful fans.

President Trump has brought to an end weeks of speculation by confirming that he does not have any audio tapes of conversations between him and ex-FBI boss James Comey. So why pretend he did?

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Just before Donald Trump left Washington to come on this gruelling trip, the word was he would have given anything to get out of it or anything to shorten it.

One, he likes his home comforts - not that Air Force One is exactly slumming it - and two, he knew that all his critics were waiting for him to do something gauche or stupid in some faraway foreign clime.

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Before Donald Trump became president he would often spend days holed up in Trump Tower in New York, shuttling in a private elevator between his penthouse apartment and office.

And it's been a similar story since he moved into the White House, where he divides his time between the East and West Wings, leaving only to spend weekends at Trump-branded resorts.

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Washington's big night of pomp and politics - and from the fledgling president a disciplined performance and a well-crafted speech.

From the get-go it was clear this was going to be something different.

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Today totally typified the unexpected and unpredictable nature of covering the 45th president of the United States.

I was at home, working on a book I am trying to finish when there was a flash on the TV: Donald Trump to hold unscheduled news conference in an hour's time.