Who was the last Democrat to hold the seat?
facts are handy things.
to add more complexity to the question, Congressional districts move. Every ten years seats are re-apportioned, so it is possible that today’s NY23 does not overlap the NY23 of 60 years ago.
Parts of the 23rd haven't been represented by a Dim since the 1890's .. Michael McNulty (After redistricting Dim - 21st) was elected by other parts in 1993.
Linky Thing 1: Click Here
Linky Thing 2: Click Here
There ya go ..