I fact checked with AI as one does these days and at least the AGI supports you with the first Trump admin being what it identifies as a real change in policy since WW-II: "In 2018, the Trump administration used Section 232 of the Trade Expansion Act of 1962—a rarely used Cold War-era law—to declare Canadian steel and aluminum a "national security threat" to the United States. These tariffs were not applied because Canadian steel companies were breaking dumping laws. They were deployed as broad, sweeping coercion to force Canada to the table to renegotiate the entire NAFTA agreement under threat of economic damage."

So yes. I agree there is an actual change vs. the post WW-II trajectory. At least in the public sphere. I don't know what used to happen behind closed doors. AI here says a lot of power struggles have happened (some specific examples but I'll spare you) but not in public. But argues that the shifting of those into the public sphere is a real change. And I agree with the AI overlords.