 | ||||||||||||||||||||
| ||||||||||||||||||||
| ||||||||||||||||||||
  Castle: 50–60% 60–70% 70–80% 80–90% Kreshtool: 60–70% | ||||||||||||||||||||
| ||||||||||||||||||||
| Elections in Delaware |
|---|
 |
The 1988 Delaware gubernatorial election took place on November 8, 1988. Incumbent Republican governor Mike Castle won re-election to a second term, defeating Democratic nominee labor lawyer Jacob Kreshtool in a landslide. Both were unopposed in their respective primaries. As of 2024[update], this was the last time a Republican was elected Governor of Delaware.