Fiction writers and time-travel… foo, at least for TV, they’re just lousy.
As I noted, has anyone seen an episode/movie that went back to 1896?
Just think about it - what if McKinley never became President. Not only would foreign and economic policy be different, but Teddy Roosevelt may never have gotten the promotions he did, thus perhaps never becoming President. The world would be different today. But no, always back to the Nazis with the lazy time-travel stories.
My grandfather was almost a teenager when McKinley became President. Makes me feel… kind of old.