(Video still via ABC/Insiders)

Devastating critique:

We've also learned that he has no desire — and no capacity — to lead the world. He was an uneasy, lonely, awkward figure at [G-20], and you got the strong sense that some of the leaders are trying to find the best way to work around him. Donald Trump's a man who craves power because it burnishes his celebrity. To be constantly talking and talked about is all that really matters, and there is no value placed on the meaning of words, so what's said one day can be discarded the next... Donald Trump has pressed fast forward on the decline of the United States as a global leader.... Some will cheer the decline of America, but I think we'll miss it when it's gone.

— Australian journalist Chris Uhlmann on Trump's G-20 performance