Republicans hold AR-SD-07 in Washington County, Arkansas, by just 34 votes (!), or 0.84%. This seat went for Trump by 14%. Jim Bob Duggar ran in the R primary earlier but lost.
I'm sure the turnout was very low, but that's absolutely insane. Special elections really can be weird. Who said all politics was national?
The winning R got only about 2/3rds of the total GOP primary turnout for the special while the Democrat turned out about 2.5x the Democrat primary. Reportedly the Repub didn't campaign past the primary.