Each week The Economist and YouGov ask Americans what they make of their president. The latest survey shows Donald Trump has passed a milestone: he is the most unpopular Oval Office occupant since our poll began in 2009. War in Iran has hurt Mr Trump’s standing, but it is his handling of the economy (which cannot be separated from his foreign policy) that is really dragging him down. Dig into the polling data in our Trump tracker.


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