A Change of Heart: McKinley’s Final Stance on Trade By the end of his presidency, McKinley began to rethink his stance on high tariffs. In one of his final speeches, delivered at the Buffalo Exposition in 1901, he acknowledged that overly restrictive trade policies were unsustainable, stating:
"The period of exclusiveness is past… commercial wars are unprofitable. Reciprocity treaties are in harmony with the spirit of the times; measures of retaliation are not."
(From your link of the bs pod.cast........The tariffs had accomplished their goal, now try reading his speech..)