John Armstrong is the Democratic candidate for Springfield's 24th Congressional District's Congressman.
Presumably from the Springfield area, he runs for Congress after Horace Wilcox suffers and dies from a heart attack. Krusty the Clown and John Armstrong run to take his place. In the beginning, John is well-liked over the then-terrible candidate Krusty. He mud-slung Krusty for offensive ads. It seemed like he had the election. However, helped Krusty appeal to the common man, winning him the election.
In the beginning he was well-liked. However, FOX disliked him for his political party. He was always winning until Lisa helped Krusty.
- He shares his name with John Armstrong, Jr., who ironically became a Congressman.