Donald Trump has proposed a 10% tariff on all imports and would also like the ability to impose reciprocal tariffs on any country that exceeds the 10% tariff level on imports from the U.S. Trump calls upon the ghosts of the Republican past for his policy, reminding those of us who’ve forgotten, and that would be all of us, that future president William McKinley had been responsible for a similar policy in 1890 during his time as Chairman of the House Ways and Means Committee.