Donald Trump arrived in Biarritz for the G7 summit on Saturday morning like an angry lion, having just slapped higher tariffs on Chinese imports, attacked the Federal Reserve and said he was ready to use emergency powers to compel US companies to stop doing business with Beijing.
But the Basque air seemed to have soothed the US president and he sounded more like a lamb as he flew back to Washington on Monday, suggesting that a deal to end the trade war with China might still be in the offing. In between, Mr Trump sealed informal agreements to ease commercial tensions with both France and Japan. So what trade lessons can we draw from the gathering of world leaders?
1) US president remains mercurial on China
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