> Trump has always liked tariffs [alas, I can't find the source for this pre-presidency, its been blown out by current events].

Here you go, Feb 2011: https://money.cnn.com/2011/02/10/news/economy/donald_trump_c...

"The comment repeated past statements from "The Apprentice" star, who has said he wants to put a 25% tariff on all Chinese imports, to level trade imbalances in the global economy."