1988Final results
1988 election for Delaware Governor
Governor · Delaware
Michael Castle (R) won with 70.7% of the vote, defeating Jacob Kreshtoll (D) by 41.5 points.
Michael CastleRepublican · winner
70.7%169,733
Jacob KreshtollDemocrat
29.3%70,236
239,969 votes
Source: Algara, Carlos; Amlani, Sharif (Harvard Dataverse)Updated Oct 5, 2026, 12:23 AM ET
The seat over time
D − R margin in this seat's races around 1988
Races before and after
Source: Algara, Carlos; Amlani, Sharif (Harvard Dataverse)Updated Oct 5, 2026, 12:23 AM ET