Nimersheim, Jack. "A Fireside Chat"
Divergence: 1920 CE
What if: Warren Harding died during the campaign of 1920, putting James Cox in the White House. But Cox died too and his Veep became president.
Summary: In 1923, President Franklin Roosevelt meets with German Chancellor Adolf Hitler, who successfully pulled off the Beer Hall Putsch.
Published: In Alternate Presidents (ed. Mike Resnick), q.v.