Referenced McKinley, Ohio, tariffs.
https://www.britannica.com/biography/William-McKinley
…closely identified during his congressional years was the protective tariff, a high tax on imported goods which served to protect American manufacturers from foreign competition. While it was only natural for a Republican from a rapidly industrializing state to favour protection, McKinley’s support reflected more than his party’s pro-business bias. A genuinely compassionate man, McKinley cared about the well-being of American workers, and he always insisted that a high tariff was necessary to assuring high wages. As chairman of the House Ways and Means Committee, he was the principal sponsor of the McKinley Tariff of 1890, which raised duties higher than they had been at any previous time. Yet by the end of his presidency McKinley had become a convert to commercial reciprocity among nations, recognizing that Americans must buy products from other countries in order to sustain the sale of American goods abroad.