Well, it looks like Trump is messing up at the G7 summit, with his talk of imposing tariffs and his sermon that Russia, which has a smaller economy than Texas should be reinstated after being kicked out of the G8 for annexing the Crimea. At any rate, Trump is alienating key US allies with his insults, and confusing them by reversing his rhetoric by later claiming that eliminating all tariffs should be considered. This volatility, or mendacity, is what makes dealing with a dotard so dangerous. With Trump isolating the US from its closest allies, this summit has been described as G6+1, which reminds me of a catchy but rather silly song from about a decade ago:
Tweeting insults from the bowl like a dummy
Donnie got no poker game, just rummy.
D00ds that have to act like this got wee dicks,
And the summit will feel like a G6.
I don't think that next week's summit with North Korea will go any better, I just dread what song it may remind me of...