Final countdown: We’re about eight hours away from the U.S. imposing hefty steel and aluminum tariffs on some of its closest allies unless Trump decides to let them off the hook. A look at where things currently stand: politi.co/2JG1jiK The countries awaiting their fate are Canada, Mexico, Argentina, Australia, Brazil and the EU. They were granted a temporary exemption from the duties (25% on steel, 10% on aluminum) that Trump imposed on the rest of the world last month. But that expires at midnight.