Trump's new tariffs are just as questionable as his previous ones

When you start with a predetermined policy and then go looking for a legal pretext to justify it, you are building on shaky ground. President Donald Trump illustrated that point once again last week, when he announced a third round of broad tariffs after his first two attempts were rejected by federal courts. Shortly after taking office last year, Trump claimed to have discovered a previously unnoticed delegation of tariff authority in the International Emergency Economic Powers Act, a 1977 law…