Trump's shifting war aims and exit options

US President Donald Trump says he’s nearly done with the war in Iran, declaring: "We will be leaving very soon." His secretary of state also said on Wednesday that he can "see the finish line".

This would be significant, but only if the Americans were in control of the war.

Today, international and political editor Peter Hartcher argues the United States has leached power in this war, while the Iranian regime is in its element.

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