There has been a growing narrative taking hold about Barack Obama’s presidency in recent weeks: that he is loved by many, but feared by none; that he is full of lofty vision, but is actually achieving nothing with his grandiloquence.

Chicago’s dismal showing yesterday, after Mr Obama’s personal, impassioned last-minute pitch, is a stunning humiliation for this President. It cannot be emphasised enough how this will feed the perception that on the world stage he looks good — but carries no heft.

It was only the Olympic Games, the White House will argue — not a high-stakes diplomatic gamble with North Korea. It is always worthwhile when Mr Obama sells America to the rest of the world, David Axelrod, his chief political adviser, said today. But that argument will fall on deaf ears in the US. Americans want their presidents to be winners.

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