The underlying argument is that people unhappy with Trump’s presidential tenure should effectively wait him out, that with Trump leaving the White House on Jan. 20, 2029, Republicans would revert to “normal,” opposing tariffs, seeking to project U.S. strength abroad, and much more. U.S. voters, more broadly, would once again see the wisdom of that policy approach, with real-world effects, among others, being a free trade boom, and fulsome American government support for international and multilateral institutions such as the United Nations and NATO. Whether the remainder of Trump’s presidency, and the years beyond, play out that way is very...